Why is my logical mask not working on a 2D matrix in matlab properly?
Why is my logical mask not working on a 2D matrix in matlab properly? X(100,371) %% contains 100 datapoints for 371 variables I want to keep only the data which are within mean+standard deviation:mean-standard deviation. This is how I am proceeding: mx=mean(X);sx=std(X); %%generate mean, std %%this generates mx(1,371) and sx(1,371) mx=double(repmat(mx,100,1)); %%this fills a matrix with the same datapoints, %%100 times sx=double(repmat(sx,100,1)); %% this gives mx(100,371) and sx(100,371) g=X>mx-sx & X<mx+sx; %%this creates a logical mask g(100,371) %%filled with 1s and 0s test(g)=X(g); %%this should give me test(100,371), but I get %%test(37100), which is wrong as it doesnt maintain %%the shape of X test=reshape(test,100,371) %% but when I compare this to the my original matrix %% X(100,371) I hardly see a difference (datapoints %% in test are still outside the range I want. What am I doing wrong? 1 Answer ...