multi dimension colon operation

2015 9 24

1 个回答

更新时间：2021 8 20

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0 个投票

I don't know if 'multi dimension colon operation' can explain my question, what I hope to do is given a matrix:

matrix_in = [1, 2, 3;
             2, 3, 4;
             3, 4, 5];

for each of the i=1:3 line, return the sum of matrix_in from line 1 to line i, so the output is:

matrix_out = [1, 2, 3;
              3, 5, 7;
              6, 9, 12];

is there a way of doing this with one line code? Thanks!

0 个评论
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Azzi Abdelmalek 2015-9-24

2 个投票

cumsum(matrix_in)

Xueqing 2015-9-24

that's nice and neat, thanks for the quick help!

Matt J 2015-9-24

that's nice and neat, thanks for the quick help!

You should thank Azzi by clicking "Accept" on his answer.

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