extract array from a matrix

ADC
2018 8 29
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更新时间：2019 1 15
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I need to extract the arrays from a tab that contain an assigned value for instance on the Matrix A take all the rows with contain the value 10 on the first column How Can I Do???

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Christian Heigele
Christian Heigele 2018-8-29

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Logical indexing:
A(A(:,1)==10,:)
That states which rows you want to select: A(:,1)==10 , with A(cond, :) you access all those who are selected.

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ADC
ADC 2019-1-15
very usefull but it doesn't work if for exsample I've the needed to import data like a table...
I got an error when put the operator ==, is there any other way to do it???

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