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How to I specify rows that are evenly spaced?

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Ashley
Ashley 2013-9-11
Hello, I am trying to access the 30th row of a column vector, and then the 68th row, and then the 106th row, all the way up to 1474. So basically, row 30, and then a difference of 38 up to row 1474. I need to access these data in order to plot them. Thank you.
Ashley

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-9-11
编辑：Azzi Abdelmalek 2013-9-11
A(30:38:end)
%Example
A=rand(1474,1);
out=A(30:38:end);
plot(out)
  1 个评论
Roger Stafford
Roger Stafford 2013-9-11
Based on the wording of the question, it should probably be:
out=A(30:38:1474);
in case A has more than 1474 rows.

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