Removing rows based on numerical value
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I would like to remove rows from a very large array based on a column that increments from 0.00 by tenths or hundreths to very large numbers. I only want to keep the rows that have zeros in the decimal places. I'm just not sure what MATLAB function / technique to use to pull only those rows.
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Presuming "...only want to keep the rows that have zeros in the decimal places" means the integer-valued locations, then lose those not matching--
x(mod(x(:,nCol),1)~=0),:)=[];
or, conversely, keep the wanted--
x=x(mod(x(:,nCol),1)==0),:);
where nCol is the column of interest in array x
Not sure if either has any speed advantage for larger arrays or not...
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