Return index matlab
From Matlab documentation: I = FIND(X,K,'first') is the same as I = FIND(X,K). You only need to indicate 'last' if you want it the other way around. – Phonon Aug 12 '11 at 14:22. both phonon and oli will work. matlab: find the index of rows from the first matching column value. 2. MATLAB returns an array that matches the elements of the array X, element-by-element holding 1s where the matching values in X are the desired values, and 0s otherwise. The array logInd is not an array of double numbers, but have the class logical . k = find(X) returns the indices of the array X that point to nonzero elements. If none is found, find returns an empty matrix. [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. I would like to extract index value from indexed image from specific coordinate (X, Y) in Matlab. I have used impixel which is working perfectly for an image, however, when I use it in a loop it returns NaN or incorrect values. So, How to return its index? (manually its index is X(2)). what if I have a lot of cells? I know that "find" can be used for normal matrices but when I tried to do the same for the cell arrays, it didn't work! Description. The xPCGetSignalIdx function returns the index of a signal. The name must be identical to the name generated when the real-time application was built. To find the name, access the file model_namebio.m in the generated code, where model_name is the name of the model. The creator of the custom program already knows the signal name. Your Match is not a pattern in your "a" so that's why it didn't find it. {21 31 1} is nowhere in a. If it still does not work and you want a simple, intuitive for loop, then try this:
MATLAB returns an array that matches the elements of the array X, element-by-element holding 1s where the matching values in X are the desired values, and 0s otherwise. The array logInd is not an array of double numbers, but have the class logical .
26 Aug 2018 In an effort to converting the Matlab off-the-shelf function maxk, which returns the values and indices of the top K largest/smallest values, I found 5 Oct 2002 This document lists MATLAB coding recommendations consistent with best for temporary storage or indices can be kept short. Functions with no output argument or which only return a handle should be named after. 7 Sep 2011 All entries of matlab array except certain index. Say you have a matrix D: D = [1 2 3 4 5];. And you want to be able to suck out all entries that are 4 Dec 2019 available in R, in a similar manner as in Octave and MATLAB. Qhull computes convex Return indices of triangles on surface convhulln(pc).
k = find(X) returns the indices of the array X that point to nonzero elements. If none is found, find returns an empty matrix. [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.
Find and match multiple values in a matrix with MATLAB's ismember function. I was preparing I want to find index which matches all the three elements. For ex Find indices and values of nonzero elements; locates all nonzero elements of array X, and returns the linear indices of those elements in a vector. If X is a row
Find the maximum coefficient over all entries of the matrix. min(A(:)) Matlab supports finding subscripts (I and J) as well as indices (just I), but so far igl::find only
Your Match is not a pattern in your "a" so that's why it didn't find it. {21 31 1} is nowhere in a. If it still does not work and you want a simple, intuitive for loop, then try this: It does work! The linear index of 5 is 4 not 5! But if you want to extract row and column you just need to adapt the code Jan gave you. Store the row and column return from find and put it in the match cell array.
22 Sep 2017 I have a cell array of the form: A={[1,2,3;4,5,6],[11,22],[33;55;66;7]}; Now I want the code to return the index of e.g. value "5", i.e. A{:,1}(2,2).
MATLAB returns an array that matches the elements of the array X, element-by-element holding 1s where the matching values in X are the desired values, and 0s otherwise. The array logInd is not an array of double numbers, but have the class logical .
From Matlab documentation: I = FIND(X,K,'first') is the same as I = FIND(X,K). You only need to indicate 'last' if you want it the other way around. – Phonon Aug 12 '11 at 14:22. both phonon and oli will work. matlab: find the index of rows from the first matching column value. 2.