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How to trim data in a matrix?

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flemingtb
flemingtb 2018-9-12
编辑： jonas 2018-9-12
I have a matrix 800x800, from X(0:130) and X(589:end) is garbage. How do i remove the data so that i can surface plot it?
If there is a link on how to manipulate data in MATLAB i'd appreciate it, it seems i spend most of my time goofing around with this type of stuff. Any help is greatly appreciated.

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jonas
jonas 2018-9-12
编辑：jonas 2018-9-12
X(0) is not a valid index. Try this:
X(:,[1:130,589:end])=[];
This removes the columns from 1 to 130 and 589 onward, so that you end up with a matrix of size ~800x450,
You could have a read here ( link )

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