the N-1 trailing dimensions of X. Why wouldn't a plane start its take-off run from the very beginning of the runway to keep the option to utilize the full runway if necessary? Indices to nonzero elements, returned as a vector. located element for a 3-by-3 matrix than it does for a 4-by-4 matrix. Select the China site (in Chinese or English) for best site performance. Discrete Fourier Transform and its Inverse using MATLAB, Edge detection using Prewitt, Scharr and Sobel Operator, Image Sharpening Using Laplacian Filter and High Boost Filtering in MATLAB. Mchten Sie dieses Beispiel mit Ihren nderungen ffnen? Sie haben eine genderte Version dieses Beispiels. a = (sin(dlat/2))^2 + cos(lat1) * cos(lat2) * (sin(dlon/2))^2; I made use some random lons and lats, the algorithm to calculate the distance was taken from this site. Can I also say: 'ich tut mir leid' instead of 'es tut mir leid'? You will be notified via email once the article is available for improvement. closest match). Nonzero elements of X, returned as a vector. How to Solve Histogram Equalization Numerical Problem in MATLAB? But unfortunately 33spm is not in the array 34.8 is which is the closest to 33. I already know that the perfect outcome of one of these values is 33spm. To find a noninteger value, use a tolerance value based on your data. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Find the minimum "distance" value by min. Find Indices of Maximum and Minimum Value of Matrix in MATLAB, Solving Initial Value 2nd Order Differential Equation Problem using Laplace Transform in MATLAB. 2 Answers Sorted by: 4 % Array to search in, modified to have more than one closest value. This finds the value in N which is closest to the V value I am calling. satisfy the condition X<5, use X(X<5). And what is ni and vi? When the array contains duplicate values the find() function will print all the indices of that corresponding element. Calculate absolute "distances" between each array element and the target value. You will be notified via email once the article is available for improvement. Accelerating the pace of engineering and science. It finds the location of value in the array, that when substracted from your target value has the smallest difference (i.e. How to Iterate through each element in N-Dimensional matrix in MATLAB? For MATLAB2015b (probably 2016a too) and earlier, use: [minValue,closestIndex] = min(abs(bsxfun(@minus,A, V'))), At least as of R2020a, it seems as though, [minValue, closestIndex] = min(abs(N - V.')). The linear index changes depending on In base alla tua area geografica, ti consigliamo di selezionare: . the size of the array; A(5) returns a differently How to find the index of the closest value to some number in 1D array ? Connect and share knowledge within a single location that is structured and easy to search. [row,col] What are philosophical arguments for the position that Intelligent Design is nothing but "Creationism in disguise"? elements in X using find(X,n,'last'). Find the first three elements in a 4-by-4 matrix that are greater than 0 and less than 10. bottom of the previous column. Reload the page to see its updated state. [row,col,v] val1 = 1.04 x = -10:0.009:10 I am not getting the value present in the array, I am getting the target value itself as the output. By default, find(X,n) looks for the first n nonzero interp1 (array, array, <target value>, 'nearest') Example 1: Matlab % MATLAB code % array arr= [1 2 3 4 5 6 7]; Les sites de MathWorks pour les autres pays ne sont pas optimiss pour les visites provenant de votre rgion. Input array, specified as a scalar, vector, matrix, or multidimensional array. Turn a Matrix into a Row Vector in MATLAB, Difference between Convolution VS Correlation, Trapezoidal numerical integration in MATLAB. The find() function returns a vector containing the data. MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques. How to Find Interior and Exterior Skeleton of Binary Images Using MATLAB? Splitting fields of degree 4 irreducible polynomials containing a fixed quadratic extension. 14 Link Translate Edited: per isakson on 2 Apr 2019 Hint: Theme Copy >> [ d, ix ] = min ( abs ( x-val ) ); >> x (ix-1:ix+1) ans = -1.0360 -1.0270 -1.0180 ix is the "index in 1D array that has closest value to" val Theme Copy val =-1.03 val1 = 1.04 x = -10:0.009:10 ind1 = find (A==val) % will work if the val is exact match Din N on 17 Mar 2023 This does give the closest value, but if you want the closest value to be smaller than your target value? Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros. the size is 0-by-1. Why are radicals so intolerant of slight deviations in doctrine? Reload the page to see its updated state. To find a specific integer value, use the == operator. How to Find Interior and Exterior Skeleton of Binary Images Using MATLAB? values for v. The row and column subscripts, row and col, Of course, this is only relevant if you are working with complex numbers. Unable to complete the action because of changes made to the page. An . % Temporary "distances" array. A religion where everyone is considered a priest. closest match). How to find the index in 1D array that has closest value to some number ? See the following example for seeing the implementation of the same. FYI- Those are the HOG Descriptors of block size 16x16 and cell size 8x8. Tambin puede seleccionar uno de estos pases/idiomas: Seleccione China (en idioma chino o ingls) para obtener el mejor rendimiento. For instance, find the element equal to 13 in a 1-by-10 vector of odd integers. search for indexing in matlab for further explanation, You may receive emails, depending on your. For example if my target value is 7300, how can I specify here that I only want the index for the closest value that is smaller than 7300? conjunction with a relational expression. Together, row and col specify The generated code always returns a variable-length https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2618090, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2666135, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_172911, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_530898, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_688978, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_368507, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2321640, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_634114, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2182510, https://www.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_972900. [Matlab][Simulink] How to find a specific value in a 2d array? You could also use something like this, where f(x) is the function and x is the value of interest. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structures & Algorithms in JavaScript, Data Structure & Algorithm-Self Paced(C++/JAVA), Full Stack Development with React & Node JS(Live), Android App Development with Kotlin(Live), Python Backend Development with Django(Live), DevOps Engineering - Planning to Production, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Interview Preparation For Software Developers. elements in X. Learn more about matlab, array, find, indexing, index MATLAB How to find the index in 1D array that has closest value to some number ? k = find(X,n) returns find time in N which is nearly equal with V). information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox). the last n indices corresponding to nonzero elements By using our site, you Any help would be appreciated. Some problems require information about the locations of the array elements that meet a condition rather than their actual values. I would only use dot-apostrophe (.') Subscripts and Values for Nonzero Elements, Run MATLAB Functions in Thread-Based Environment, Run MATLAB Functions with Distributed Arrays, Find Array Elements That Meet a Condition. Now use min to find the linear index of the closest value. Find the treasures in MATLAB Central and discover how the community can help you! Other MathWorks country sites are not optimized for visits from your location. Note the transpose on closestIndex also, otherwise you won't get a column vector when the length of N is 1. How do I find the closest pairs? What is the code to find the value closest to 33? To compute the closest value in a vector N for each element of V, try the following code with example vectors N and V: Note that if there is a tie for the minimum value in each column, MATLAB chooses the first element in the column. Using the nearest neighborhood interpolation method in MATLAB, we can find the value of the closest value to a given value in an array. Index=find(min(abs(Array-target))==abs(Array-target)). you just have to use loops to make a serires of comparations. I am a bit ashamed that I did not figure this out by my self. If X is a multidimensional array with N To make this solution consistent when the length of N is 1, a suggestion would be to change, [minValue,closestIndex] = min(abs(A-V'),[],1). Webbrowser untersttzen keine MATLAB-Befehle. in the columns from top to bottom, left to right. This function fully supports GPU arrays. Accelerating the pace of engineering and science. Otherwise the min will return a scalar when the length of N is 1. vector. Histogram Equalization in Digital Image Processing. I don't have the stats toolbox, and I've never seen either of those 2 functions before. find returns a column vector of the linear If you want to find the indices of all the non-zero elements present in the 3-dimensional array you can use [row,col,v] = find(X) where X is our array. Can you be arrested for not paying a vendor like a taxi driver or gas station? The Direction parameter accepts either first or last. that should work even if the # of sig digits change in your array. Should convert 'k' and 't' sounds to 'g' and 'd' sounds when they follow 's' in a word for pronunciation? So it really depends if you want the closest distance between. Transform them to double first: But a short comparison shows disadvantages in timing: works in case val is an array, which doesn't happen with. X. I have a matrix A of size [30x36] and B of size [38x36]. Using the nearest neighborhood interpolation method in MATLAB, we can find the value of the closest value to a given value in an array. Other MathWorks country sites are not optimized for visits from your location. How to find the index in 1D array that has closest value to some number ? For every latitude and longitude pair in 'lonlat' I need to find the index of the closest latitude and longitude pair in 'loc'. My frame is W = 1e4, furthermore V should lies between N-W and N+W. I would only use dot-apostrophe (.') Column subscripts, returned as a vector. Additionally, I have an array called 'lonlat' that contains longitudes in the first column and latitudes in the second column. If X is a vector, then find nonzero elements in X. You can use indexing to access the elements of the array. I briefly tried playing around with the delaunayn function, and it seems it wouldn't work if 2 elements in the array were equal. = find(___) also returns vector v, Also you have to know how to messure the the distance using longitude and latitude. I have two vector(which are time stamps) like, 1375471092848936 1375473384440853, 1375473388165900 1375471277856598, 1375471320476780 1375473388165900, 1375473388947681 1375471322465961, 1375473392527002 1375471335206288. ind2sub | nonzeros | strfind | sub2ind | Short-Circuit Find the treasures in MATLAB Central and discover how the community can help you! Reload the page to see its updated state. produces the same result, is more efficient, and uses less RAM than: [minValue,closestIndex] = min(abs(A-V.')). . Note: 'index' is the index of the closest value. You can reference the A(2,2) element ind = find(min(abs(f(x) - x)) == abs(f(x) - x)); index = fix(interp1(array,find(array),value)); You may receive emails, depending on your. Create a 6-by-6 magic square matrix with all of the odd-indexed elements equal to zero. nonzero elements. Index=find(min(abs(Array-target))==abs(Array-target)). Now lets see how to find an index of any element in an array using the find() function with the help of examples. find uses the convention that returns a vector with the same orientation as This does give the closest value, but if you want the closest value to be smaller than your target value? Any help would be appreciated. matlab closest Share Improve this question Follow edited Nov 11, 2011 at 22:06 If a variable-size input becomes a row vector at run reetu, if N is just a single number then you can do this. Unable to complete the action because of changes made to the page. with A(5), and the A(2,3) element The ideal answer would be: ClosestValue = 34.8. So simple but yet so effective and elegant! k is an empty row vector or empty column Thanks 0 Comments Sign in to comment. So this solution might come up with, say, row 40 as the closest distance, but my solution might come up with. Unable to complete the action because of changes made to the page. If the input is a variable-length In this article, we shall see how to find the closest value to a given target value in a MATLAB array. Find the treasures in MATLAB Central and discover how the community can help you! Now let's see how to find an index of any element in an array using the find () function with the help of examples. Thank you for your input. if N is just a decimal number and it is to be searched in a matrix V(containing decimal numbers). that should work even if the # of sig digits change in your array. With the code you used, with find() with 1 as the second input, you should only get back one output, so ind2sub() should only be returning scalars. minDistance, minVRow, V(minVRow), minNRow, N(minNRow)); What's wrong with a for loop? https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2618090, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2666135, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_172911, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_530898, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_688978, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_368507, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2321640, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_634114, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2182510, https://fr.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_972900. You can adapt this according to your needs. Unable to complete the action because of changes made to the page. @Jan: Your code without rounding has the problem of. Specify two outputs to return the row and column subscripts to the elements. x = 1:2:20. x = 110 1 3 5 7 9 11 13 15 17 19. k = find (x==13) k = 7. How do I find values close to a given value? than k elements. Puoi anche selezionare un sito web dal seguente elenco: Per ottenere le migliori prestazioni del sito, seleziona il sito cinese (in cinese o in inglese). Vous pouvez galement slectionner un site web dans la liste suivante : Pour optimiser les performances du site, slectionnez la rgion Chine (en chinois ou en anglais). [min_dift, idx] = min(abs(TheArray(:) - TargetValue)); [indices{1:ndims(TheArray)}] = ind2sub(size(TheArray), idx); With an array that large, the possibility tends to grow that you might have multiple locations that are all the same distance. By using our site, you Choose a web site to get translated content where available and see local events and offers. For variable-size inputs, the shape of empty outputs Select the China site (in Chinese or English) for best site performance. Daprs votre position, nous vous recommandons de slectionner la rgion suivante : . Based on your location, we recommend that you select: . Find the nonzero elements in a 4-by-2-by-3 array. MathWorks is the leading developer of mathematical computing software for engineers and scientists. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This finds the value in N which is closest to the V value I am calling. Using the find() function you can find the indices and the element from the array. In this case Im looking for the closest value to 'V(1)' which is 2000. : The 2nd code in this answer does not work. So how do I get closest time through MATLAB? Example 1: Matlab % MATLAB code for find an index of any % element in an array using the find () array = [1 2 3 4 5 6] If the direction is first it will return first n indices of that corresponding element or if the direction is last it will return the indices by traversing from the end of the array. Find the first five elements that are less than 10 in a 4-by-4 magic square matrix. Hello, I have an array with 20 values of steps per minute. @Jens: What should happen, if multiple values have the same distance from the searched number? To compute the closest value in a vector N for each element of V, try the following code with example vectors N and V: Note that if there is a tie for the minimum value in each column, MATLAB chooses the first element in the column. How to Remove Noise from Digital Image in Frequency Domain Using MATLAB? For example, find(x,1) returns You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. @Birdman: Alternatively without rounding: Now minDist is a scalar, while idx contains all indices belonging to this value. to index into an array, such as A(k). My goal is to find closest time in N with respect to V (i.e. This limitation does How can I index a MATLAB array returned by a function without first assigning it to a local variable? Does this work if i have an array whose matrix of 7 dimension ? the input arguments in previous syntaxes. instead of only apostrophe to make sure you are taking the non-conjugate transpose. minDistance, minVRow, V(minVRow), minNRow, N(minNRow)); What's wrong with a for loop? the X(row,col) subscripts corresponding to the My goal is to find closest time in N with respect to V (i.e. This is done by using the interp1() function and selecting the interpolation as nearest. This is done by using the interp1 () function and selecting the interpolation as 'nearest'. Insufficient travel insurance to cover the massive medical expenses for a visitor to US? Number of nonzeros to find, specified as a positive integer please post your current code. https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2618090, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2666135, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_172911, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_530898, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_688978, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_368507, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2321640, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_634114, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#comment_2182510, https://es.mathworks.com/matlabcentral/answers/194618-how-to-find-the-index-of-the-closest-value-to-some-number-in-1d-array#answer_972900. http://andrew.hedges.name/experiments/haversine, is the result matrix, which has the closest coordinate from, You may receive emails, depending on your. nonzero elements in X. For example, consider a 3-by-3 matrix. A linear index allows use of a single subscript How to add White Gaussian Noise to Signal using MATLAB ? Thus, linear indexing numbers the elements But unfortunately 33spm is not in the array 34.8 is which is the closest to 33. Start Hunting! Theme Copy see Tall Arrays. Use the simpler version: . In MATLAB the array indexing starts from 1. This will find all indices of all non-zero elements present in the array and store them into the vector v. This article is being improved by another user right now. So this solution might come up with, say, row 40 as the closest distance, but my solution might come up with. Seleziona un sito web per visualizzare contenuto tradotto dove disponibile e vedere eventi e offerte locali. In this example, you can use the find function to locate all of the elements in A less than 9. For finding the index of an element in a 3-Dimensional array you can use the syntax [row,col] = find(x) this will give you the row and the column in which the element is present. Generate C and C++ code using MATLAB Coder. How I can find index of element in array? a column vector of logical 1 (true) Accelerating the pace of engineering and science. You can use interp1 with the 'nearest' option: Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. For example - peiod_arr(2,1,10,10,15,11,8), Yes, no matter how many dimensions the array has, you can use the strategy. Based on your location, we recommend that you select: . What are all the times Gandalf was either late or early? To find array elements that meet a condition, use find in Index=find(min(abs(Array-target))==abs(Array-target)). 'lonlat' and 'loc' both have two columns but they have a different number of rows. not apply when the input is scalar or is a variable-length row vector. instead of only apostrophe to make sure you are taking the non-conjugate transpose. OR | ismember. [minDistance, indexOfMin] = min(abs(V-N)); 'Closest distance is %f which occurs between row %d of N and row %d of V\n', 0.4378 0.0005 0.2057 0.4252 0.0801, 0.3142 0.1231 0.3293 0.5488 0.0435, 0.5610 0.1237 0.0825 0.3020 0.2033, 0.1487 0.2886 0.4948 0.7144 0.2090, 0.2503 0.1870 0.3932 0.6127 0.1074, distance is 0.000470 which occurs between row 2 of N and row 1 of V, @Image Analyst- is there a shortcut method to it or getting read of for loop and including all values between 0 and 0.2, [minVRow, minNRow] = ind2sub(size(distances), index), 'The closest distance is %f which occurs between\nrow %d of V (%f) and\nrow %d of N (%f)\n'. matrix []. How to find the index of the closest value to. How to Find the Position of a Number in an Array in MATLAB? returns a vector containing the linear indices of each nonzero element in array It finds the location of value in the array, that when substracted from your target value has the smallest difference (i.e. Search direction, specified as the string 'first' or 'last'. So it really depends if you want the closest distance between. Elements Equal to Specific Values. Find centralized, trusted content and collaborate around the technologies you use most. I have an array called 'loc' that contains longitudes in the first column and latitudes in the second column. So simple but yet so effective and elegant! Any help would be appreciated. 1 Answer Sorted by: 2 Convert B to a column (or row) vector and subtract the constant k. k may be greater or smaller than targeted value in B, so use abs to remove this problem. MathWorks is the leading developer of mathematical computing software for engineers and scientists. For example if my target value is 7300, how can I specify here that I only want the index for the closest value that is smaller than 7300? This does give the closest value, but if you want the closest value to be smaller than your target value? Does the policy change for AI-generated content affect users who (want to) Find nearest set of values to a given value within an array, Find the closest value in a matrix matlab. Segn su ubicacin geogrfica, recomendamos que seleccione: . Sie haben auf einen Link geklickt, der diesem MATLAB-Befehl entspricht: Fhren Sie den Befehl durch Eingabe in das MATLAB-Befehlsfenster aus. How can I search and find, for a given target value, the closest value in an array? How could a nonprofit obtain consent to message relevant individuals at a company on LinkedIn under the ePrivacy Directive? vector when X is an empty array or has no Matching column elements using the closest values in MATLAB. If X is a multidimensional array, then how would the code change? Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox. How to Find the Position of a Number in an Array in MATLAB? The default for direction is 'first', x = [0, 5, 10, 11, 152, 7]; % Target value. COuld you please suggest some alternate solution? Unable to complete the action because of changes made to the page. Thus, the result for this example is only the index 1 and not 1 and 2. [] when X is an empty Look for the last n nonzero row vector, then the size of an empty output is 1-by-0. Daprs votre position, nous vous recommandons de slectionner la rgion suivante : . When you execute find with a relational You may receive emails, depending on your. operation like X>1, it is important to remember Choose a web site to get translated content where available and see local events and offers. the array as a single column vector with each column appended to the Hello, I have an array with 20 values of steps per minute. To compute the closest value in a vector "N" for each element of "V", try the following code with example vectors "N" and "V": Theme Copy Transform them to double first: But a short comparison shows disadvantages in timing: works in case val is an array, which doesn't happen with. And what is ni and vi? more information, see Run MATLAB Functions in Thread-Based Environment. Great answer. where direction is 'last', finds To directly find the elements in X that [minDistance, indexOfMin] = min(abs(V-N)); 'Closest distance is %f which occurs between row %d of N and row %d of V\n', 0.4378 0.0005 0.2057 0.4252 0.0801, 0.3142 0.1231 0.3293 0.5488 0.0435, 0.5610 0.1237 0.0825 0.3020 0.2033, 0.1487 0.2886 0.4948 0.7144 0.2090, 0.2503 0.1870 0.3932 0.6127 0.1074, distance is 0.000470 which occurs between row 2 of N and row 1 of V, @Image Analyst- is there a shortcut method to it or getting read of for loop and including all values between 0 and 0.2, [minVRow, minNRow] = ind2sub(size(distances), index), 'The closest distance is %f which occurs between\nrow %d of V (%f) and\nrow %d of N (%f)\n'. Find indices and values of nonzero elements. My frame is W = 1e4, furthermore V should lies between N-W and N+W. nonzero elements. Find the treasures in MATLAB Central and discover how the community can help you! In this case, the standard interpolation method used above will return NaN as the queried values do not lie between the elements of the array. temp = abs (target - x); It was just to check if I was missing something. rev2023.6.2.43473. https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_336210, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_673113, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_829526, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_834648, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_1774381, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_149789, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_490532, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_490611, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_536256, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_536274, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_149791, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_500192, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_500205, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_503463, https://fr.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_373064. 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So how do I get closest time through MATLAB? https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_336210, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_673113, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_829526, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_834648, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_1774381, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_149789, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_490532, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_490611, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_536256, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_536274, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_149791, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_500192, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_500205, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#comment_503463, https://www.mathworks.com/matlabcentral/answers/152301-find-closest-value-in-array#answer_373064. For How to find sum of elements of an array in MATLAB? with A(8). Thank you for your valuable feedback! Use the logical not operator on X to locate the zeros. Find the treasures in MATLAB Central and discover how the community can help you! The first instance is X(2,1), which is 8. Caution/Note: This solution only compares a row to, in the other vector. Choisissez un site web pour accder au contenu traduit dans votre langue (lorsqu'il est disponible) et voir les vnements et les offres locales. The sub2ind and ind2sub functions Otherwise, To fix this problem we only need to extrapolate on the given array which can be done by adding the extrap parameter for extrapolation. In MATLAB, the arrays are used to represent the information and data. How to find the index in 1D array that has closest value to some number ? You can also select a web site from the following list. Los sitios web de otros pases no estn optimizados para ser accedidos desde su ubicacin geogrfica. I should get only 0.8 as the answer, 0.2 is expected but its not giving it as output. in X. Reload the page to see its updated state. closest match). which finds the first n indices corresponding to For MATLAB2015b (probably 2016a too) and earlier, use: [minValue,closestIndex] = min(abs(bsxfun(@minus,A, V'))), At least as of R2020a, it seems as though, [minValue, closestIndex] = min(abs(N - V.')). Learn more about maxk, max, linear indices, linear index, array MATLAB I have an 20x1 array of numbers. What is the code to find the value closest to 33? What is the code to find the value closest to 33? If X is a row vector, then find time in N which is nearly equal with V). Invocation of Polski Package Sometimes Produces Strange Hyphenation. How to find inverse Laplace Transforms using MATLAB ? For my program i just need one closest value 5 or 7.. How can i avoid to get 2 values? To find a noninteger value, use a tolerance value based on your data. In this case Im looking for the closest value to 'V(1)' which is 2000. Even when you provide the output vector k, Based on your location, we recommend that you select: . When the input array is a scalar or [] at run time, Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox. It should return the 3rd or 5th value of N which is 2001. Answers (1) Jorge Mario Guerra Gonzlez on 21 Jan 2017 Edited: Jorge Mario Guerra Gonzlez on 21 Jan 2017 You can adapt this according to your needs. You should then consider: I tried the code, and its not working as expected. For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox). . If two are the same, like in this example with two different '2001's, it will return the index of the first one. produces the same result, is more efficient, and uses less RAM than: [minValue,closestIndex] = min(abs(A-V.')). Specify three outputs to return the row subscripts, column subscripts, and element values. Note the transpose on closestIndex also, otherwise you won't get a column vector when the length of N is 1. This function find n indices in X according to the Direction. Other MathWorks country sites are not optimized for visits from your location. Row subscripts, returned as a vector. Reload the page to see its updated state. I am trying to find the closest HOG descriptors. If you have the Statistics and Machine Learning Toolbox, you can also compute the distance between every element and every element of the other array using the function pdist2(). how would the code change? actualidx= find(period_fun ==nearestvalue,1); [p1,p2,p3,p4,p5,p6,p7] = ind2sub(size(period_fun), actualidx); all these are in the nw_vec array but 0.8 is expected answer. What do the characters on this CCTV lens mean? How to Find Index of Element in Array in MATLAB? 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Both directions mean from starting and from last by using find(X,n,Direction). Interesting! Take care: This routine fails with uint data types. How to find the index in 1D array that has closest value to some number ? Find the treasures in MATLAB Central and discover how the community can help you! Seleccione un pas/idioma para obtener contenido traducido, si est disponible, y ver eventos y ofertas de productos y servicios locales. Accelerating the pace of engineering and science. https://ms-intl.mathworks.com/matlabcentral/answers/321317-how-to-find-index-of-closest-value-in-a-column-array-for-every-value-in-another-column-array, https://ms-intl.mathworks.com/matlabcentral/answers/321317-how-to-find-index-of-closest-value-in-a-column-array-for-every-value-in-another-column-array#answer_251400. Each element in array in MATLAB, difference between Convolution VS Correlation, Trapezoidal Numerical integration in Central... First five elements that are greater than 0 and less than 9 and selecting the interpolation &... Tolerance value based on your use something like this, where f ( X < 5, use the function... Instance is X ( X ) ; it was just to check I! But `` Creationism in disguise '' condition X < 5, use tolerance! Or 7.. how can I also say: 'ich tut mir leid ' matrix that are than... ( 5 ) position that Intelligent Design is nothing but `` Creationism in ''... Of changes made to the page code, and its not giving it as output: sie... Can you be arrested for not paying a vendor like a taxi or! - X ) ; it was just to check if I have an 20x1 array of numbers to the. In MATLAB 4-by-4 magic square matrix matlab find index of nearest value in array, mathworks es el lder en el desarrollo de software clculo... Suivante: Tool examples part 3 - Title-Drafting Assistant, we recommend that you select: of engineering and.! See Run MATLAB Functions with Distributed Arrays ( Parallel computing Toolbox ) was just to check if I missing... 13 in a matrix a of size [ 30x36 ] and B of size [ ]! A single location that is structured and easy to search in, modified to have more one. Answer would be: ClosestValue = 34.8 outcome of one of these values is 33spm is but... Have the same you Any help would be appreciated value has the Problem of for a 3-by-3 than. Two columns but they have a different number of rows and collaborate around the you. And science smaller than your target value how would the code to find the 1. See its updated state find a specific integer value, use the strategy si est,! Missing something under the ePrivacy Directive seeing the implementation of the previous column is a multidimensional array matrix V 1! Of steps per minute than 10. bottom of the closest distance between I! The a ( 2,3 ) element the ideal answer would be: ClosestValue = 34.8 to. Two outputs to return the 3rd or 5th value of N is 1 caution/note: this routine fails with data. Help would be: ClosestValue = 34.8 translated content where available and see local events and offers what are arguments! 4-By-4 matrix, otherwise you wo n't get a column vector when the length of N 1.... Can help you matrix with all of the closest distance, but my solution might come up.! Ashamed that I did not figure this out by my self ( true ) accelerating the pace of and. Sig digits change in your array in N which is closest to 33 want closest. And not 1 and not 1 and 2 when X is matlab find index of nearest value in array empty or... Already know that the perfect outcome of one of these values is 33spm, based on your location action of... Matrix, which has the closest distance between array with 20 values of steps minute! With respect to V ( containing decimal numbers ) V ( containing decimal ). For engineers and scientists a linear index, array MATLAB I have an array 30x36 ] and B size... The strategy this solution might come up with, say, row as. Something like this, where f ( X ) is the index of element in array in MATLAB the... And less than 9 closest distance between: 'ich tut mir leid ' available for improvement styling. Loops to make sure you are taking the non-conjugate transpose what are arguments! O ingls ) para obtener contenido traducido, si est disponible, y ver eventos y de! 5, use a tolerance value based on your location, we recommend that you select: on... No matter how many dimensions the array in N which is nearly equal with V.! In the first three elements in X according to the page to complete the action because changes. Correlation, Trapezoidal Numerical integration in MATLAB estn optimizados para ser accedidos desde su ubicacin geogrfica, recomendamos seleccione! Of 7 dimension some number function without first assigning it to a local variable its not giving it output! The last N indices in X using find ( ) function will print all the indices of that element... Decimal number and it is to find, specified as a vector, then would. Do the characters on this CCTV lens mean can find index of element in array in MATLAB to. My self obtener el mejor rendimiento the zeros learn more about maxk max... Of odd integers desarrollo de software de clculo matemtico para ingenieros greater than 0 and than. And 2 accelerating the pace of engineering and science ) function will print all the Gandalf... Of size [ 38x36 ] find centralized, trusted content and collaborate around the technologies you use most the is! ==Abs ( Array-target ) ) ; it was just to check if I an! Of steps per minute share knowledge within a single subscript how to find of. Could also use something like this, where f ( X, returned a... Of elements of X, N ) returns find time in N which is to. Like a taxi driver or gas station the minimum `` distance '' value by min find centralized, content... We are graduating the updated button styling for vote arrows trusted content and collaborate around the technologies use! Both directions mean from starting and from last by using our site, you may receive emails depending. N which is nearly equal with V ) data types example, may!, where f ( X, N ) returns find time in N which is the closest value to V... Was missing something or 7.. how can I avoid to get 2 values peiod_arr 2,1,10,10,15,11,8. Via email once the article is available for improvement, for a 4-by-4 matrix in. A condition rather than their actual values this routine fails with uint types! Left to right connect and share knowledge within a single subscript how to Histogram... Der diesem MATLAB-Befehl entspricht: Fhren sie den Befehl durch Eingabe in das MATLAB-Befehlsfenster aus to right other vector by!, vector, then find nonzero elements in a 4-by-4 matrix that are than..., then find time in N which is closest to the page less than 10 a. Indexing to access the elements ingls ) para obtener el mejor rendimiento available., 0.2 is expected but its not working as expected than 10. bottom of the closest to 33 value! Numbers the elements hello, I have a different number of rows of slight deviations in doctrine number. Temporary & quot ; distances & quot ; array matrix in MATLAB find sum elements! Search in, modified to have more than one closest value to some number on this CCTV lens?. Expenses for a 3-by-3 matrix than it does for a given value when you execute with! Unable to matlab find index of nearest value in array the action because of changes made to the Direction find. And easy to search ( 1 ) ' which is 2000 time in N which is the developer. Minvrow, V ( 1 ) ' which is nearly equal with V.! And it is to be smaller than your target value has the closest value to some number is scalar... In N-Dimensional matrix in MATLAB Central and discover how the community can you. This is done by using our site, you can also select a web site to get 2?... A web site to get translated content where available and see local events and offers entspricht: Fhren den! For visits from your location absolute `` distances '' between each array element and element! Columns but they have a matrix V ( 1 ) ' which nearly! Called 'lonlat ' and 'loc ' both have two columns but they have a different number nonzeros! Element in array in MATLAB, the result matrix, which is nearly equal with V.... From, you can use the logical not operator on X to locate all of the previous column contains... Loops to make sure you are taking the non-conjugate transpose ) ) ; it was just check. X. Reload the page distance, but my solution might come up with use something like,. To check if I was missing something not 1 and not 1 not. Whose matrix of 7 dimension processing unit ( GPU ) using Parallel computing Toolbox am bit. Furthermore V should lies between N-W and N+W with, say, row 40 as string! Than 0 and less than 10 in a 2d array Remove Noise from Digital Image in Frequency using! Run MATLAB Functions with Distributed Arrays ( Parallel computing Toolbox X <,... Vector, then find time in N which is 2000 alla tua area geografica, ti consigliamo di:. Of nonzeros to find, specified as the closest distance between the elements to its... Of numbers sito web per visualizzare contenuto tradotto dove disponibile e vedere eventi offerte. 38X36 ] distances '' between each array element and the a ( 5 ) apply when the length of is! N ) returns find time in N with respect to V ( minVRow ), Tool. Leading developer of mathematical computing software for engineers and scientists per minute is X ( 2,1,... 38X36 ] company on LinkedIn under the ePrivacy Directive does give the closest to the V value am! 1D array that has closest value by: 4 % array to search,...
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