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How do I only display the rows for when column 1 is > 0 when I have 4 columns with corresponding data to the first column

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Christopher Wolfe
Christopher Wolfe on 12 Sep 2021
Commented: Walter Roberson on 12 Sep 2021
-0.00502163330810033 -0.00535602354270113 -0.00175905055456396 -0.00195122013126169
0.0191518806112861 0.0232968219264112 0.0157208477869482 0.0189597476631202
In this instance I only want to be showing the bottom row. To put it into context there's 1278 rows, basically just want to filter out all of the rows where the number in column 1 is a negative

Answers (1)

Chunru
Chunru on 12 Sep 2021
a = [-0.00502163330810033 -0.00535602354270113 -0.00175905055456396 -0.00195122013126169
0.0191518806112861 0.0232968219264112 0.0157208477869482 0.0189597476631202];
b = a(a(:,1)>0, :) % this list the a where 1st column>0
b = 1×4
0.0192 0.0233 0.0157 0.0190

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