Using explicit iteration is not the most efficient way of solving this problem, but if you do choose to iterate I would suggest using "linear indexing", per https://au.mathworks.com/help/matlab/math/matrix-indexing.html?s_tid=doc_srchtitle#f1-85511
Say something funny
Compute LOG(1+X) in natural log
UICBioE240 problem 1.14
Delete the column with all 0 in the TABLE
Calculate feeling temperature before climbing a mountain
Delete the column with all 0 !
Average of even-numbered columns
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