How to get row index of certain values in a vector

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Daniel
Daniel 2013-12-28
评论： Image Analyst 2018-7-29
I am looking for a way to extract the row index of certain values from a vector.
I tried with
[ ~ , index ] = max(obj.GanttM(:,2)==i);
This only gives me one index but the number i appears several times. How can I extract all row indeces with one command?
Thank you.

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采纳的回答

Image Analyst
Image Analyst 2013-12-28
Use find() instead:
rows = find(obj.GanttM(:,2)==i);

更多回答（1 个）

Amit
Amit 2013-12-28
index = find(obj.GanttM(:,2)==i)
this will do it!

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