In MATLAB I have a very large matrix (matrix A). Now I would like to find the row-index of the row which contain certain values in thesecondcolumn. These values - which I'm looking for in Matrix A - are stored in anonther Matrix (Matrix B) with consists out of a row (...
[mVal,mInd]=max(MA);% max value of matrix & column index of that value maxRow=IA(mInd); maxCol=mInd; maxRow为第一个维度的索引,maxCol为第二个维度的索引。 ##find the index of the maximum value in a 2D or 3D matrix in MATLAB## 寻找三维矩阵的最大值所在位置的索引: 1 2 3 4 5...
find unique sets of values in matrix, eliminate... Learn more about matrix decimation unique sets of values
To find the indices of all the locations where the maximum value (of the whole matrix) appears, you can use the "find" function. https://www.mathworks.com/help/matlab/ref/find.html ThemeCopy maximum = max(max(A)); [x,y]=find(A==maximum) 0 Comments Sign in...
% flipud - Flip matrix in up/down direction. % flip - Flip the order of elements. % rot90 - Rotate matrix 90 degrees. % : - Regularly spaced vector and index into matrix. % find - Find indices of nonzero elements. % end - Last index. ...
I have an array of 1000+ samples. I want to find the index of nonzero elements in a large matrix in a shortest possible time. Whats the best way to get the list of indexing without using "find" funcion? Example p=[0 0 .34 0; 3 0 0 3; 0 9 0 0]; ...
smoothValue=0.01*diff(range).^2;J=imguidedfilter(I,'DegreeOfSmoothing',smoothValue);figureimshow(J,[])colormap(gca,hot)title('Guided filtered image') 确定用于细分的阈值。图像具有3个不同的区域-人,热的物体和背景-在强度(温度)上似乎很好地分开了。使用multithresh来计算图像的2级阈值。使用Otsu...
Now it should always find all occurrences as far as I know. Of course if the max was 1.00000000001 and you put m == 1, then of course the value 1 is not in there exactly and rows and columns will be empty. But @Vikas Singh said that he does "know the value of matrix" exactly ...
of bands in each level row = length(lev); % row number of accugram col = 3*2^nlevel; % column number of accugram accMatrix = zeros(row,col); % accugram matrix bandNum = sum(lev); % number of frequency band candidates xMatrix = zeros(bandNum,2*m); % feature matrix for each...
Logical indexing is closely related to thefindfunction. The expressionA(A > 5) is equivalent toA(find(A > 5)). The logical indexing expression is faster for simple cases, but you might usefindif you need the index values for something else in the computation. For example, suppose you...