How can I extract exact values from a single column of a matrix?
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The matrix in question has x, y, z coordinates in its first 3 columns respectively. I tried using a for-loop to go through the matrix and if it came across a row where x=0.025 then it would copy the entire row to a second matrix in it's 'f' row then f=f+1. The second matrix was premade with zeros and is the correct size, however it keeps resulting in no change to it.
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Star Strider
on 5 Jul 2021
Try something like this —
M = randi(50, 50, 3)/1000 % Original Matrix
Lv = M(:,1) == 0.025 % Logical Vector 'Mask'
nrtrue = nnz(Lv) % Number Of Occurrences (Optional)
N = M(Lv,:) % New Matrix
Make appropriate changes to get the result you want.
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