Removing a Range of Elements from an array
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Hi,
I have a matrix M and I am interested in the 12th column which has elements [1 2 3 4..... 540 589 760 761 770 47 46 47 48]
My goal is to get rid of all the elements after 750, including the values less than it.
My first code was
M(M(:,12)>750,:) =[];
but this didn't get rid of 47 46 48..
Mx= find(M(:,12)>750);
Mxmin=min(Mx); %to find the smallest value above 750 (in this case 760)
M(Mxmin:end,12)= [];
currently I am using this code, which gives me an error that says A null assignment can have only one non-colon index.
What am I doing wrong?
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Jos (10584)
2019-3-28
ix = find(M(:,12) > 750, 1, 'first') % find the row index of the first element in the 12th column of A being larger than 750
M(ix:end,:) = [] % remove all the rows of M starting with this row
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