Hello, I have an array with 20 values of steps per minute. In Python, I can use: But unfortunately 33spm is not in the array 34.8 is which is the closest to 33. idxFract = idxAboveVal - ( array( idxAboveVal ) - val ) / ( array( idxAboveVal ) - array( idxAboveVal - 1 ) ); Obviously it would need error checking if idxAboveVal is 1 or empty. Reload the page to see its updated state. I need to find the index for the minimum value in pbest other than '0'. I had a manual code but then realized yours is shorter and I will be using that one. Index, returned as a scalar, vector, matrix, or multidimensional array. Find the index of given value in an array. I want to find fractional index when array == 2.5 or any other intermediate value. I want to extract both temperature and time for elements starting at 2017,4,15,00,00,00 and ending at 2017,4,30,23,50,00. Reload the page to see its updated state. The array logInd is not an array of double numbers, but have the class logical . ... find longest continuous array with values exceeding a threshold. Giving what people call a 'Minimum working example' is fine, but it needs to have the full complexity of what you actually want to know still, otherwise it's of no use. index = cellfun (@ (x) x==5, C, 'UniformOutput', 1); Or the long and most likely faster form: index = false (1, numel (C)) for k = 1:numel (C) index (k) = (C {k} == 5); end. [i,j] = find(X) returns the row and column indices of the nonzero entries in the matrix X.This is often used with sparse matrices. Follow 508 views (last 30 days) Vishal Sharma on 25 Jan 2017. In Python, I can use: I realized this function, using for loop and if statement, but did Matlab doesn't have build-in similar function? Other MathWorks country sites are not optimized for visits from your location. The value of the maximum where the logical index is zero, is left out. k = find(x) [i,j] = find(X) [i,j,v] = find(X) Description. find. arrays matlab In Python, I can use: 0. For example, find(X<5) returns the linear indices to the elements in X that are less than 5 . This is a manual approach and probably would cause bugs in my case cuz the original code I am running is much more complicated in a numerical sense. To find maximum value from complete 2D numpy array we will not pass axis in numpy.amax() i.e. Find the indexes of duplicate values and replace their indexes in Matlab. The findIndex method executes the callback function once for every index 0..length-1 (inclusive) in the Find the treasures in MATLAB Central and discover how the community can help you! k = find(X) returns the indices of the array X that point to nonzero elements. Find max value in complete 2D numpy array. I got the value using the following code but I have the nan value in pbest in loops it is giving errors. But if you want to extract row and column you just need to adapt the code Jan gave you. Hence I used it to find the next value greater than the one you want and did the required maths from there. Learn more about index of element MATLAB, Image Processing Toolbox matlab: find the index of rows from the first matching column value. Store the row and column return from find and put it in the match cell array. command: peaks=find(y1==0.8236) When 'linear' is specified, I contains the linear indices of A corresponding to the maximum values. 0 ⋮ Vote. One is temperature and the other is time both start at 2017,1,1,00,00,00 and end at 2017,12,31,23,50,00 with a 10 minutes sample. Based on your location, we recommend that you select: . Choose a web site to get translated content where available and see local events and offers. I want find a particular value (let's say 7) in the first column, and then use the reference to get at the text value in the same row (much like VLOOKUP in Excel). MathWorks is the leading developer of mathematical computing software for engineers and scientists. Often logical indexing is more efficient, so you might only need this: You may receive emails, depending on your. I have some problems to get the indices of a certain value, in this case -1, within a cell array.
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