How to divide a row vector to 6 small row vector with faster technique?

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Louis Liu 2017-8-26

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https://ww2.mathworks.cn/matlabcentral/answers/354122-how-to-divide-a-row-vector-to-6-small-row-vector-with-faster-technique

评论： Louis Liu 2017-8-26

Hello, dose anyone can give me an advice of the problem below? Thanks!

problem: I got a 1-by-366 row vector now. However, I need to divide it to get the six small row vector which size of everyone is 1-by-61 and then use plot() to illustrate the plot like plot(x,c(1),x,c(2),x,c(3),x,c(4),x,c(5),x,c(6))

I can assign every one slowly like c(1) = b(1:61),c(2) = b(62:122)... but I also want to know the faster technique maybe like for loop or other method and I can apply it when I encounter some case need to divide more small row vector. Thanks!

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采纳的回答

KSSV 2017-8-26

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https://ww2.mathworks.cn/matlabcentral/answers/354122-how-to-divide-a-row-vector-to-6-small-row-vector-with-faster-technique#answer_279273

在 MATLAB Online 中打开

doc reshape. This would be faster....

A=rand(1,366);
B=reshape(A,6,[]);

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John D'Errico 2017-8-26

在 MATLAB Online 中打开

What happens if you call plot like this:

plot(1:61,cumsum(rand(61,6)))

What does this do? TRY IT. And READ THE HELP FOR PLOT!

Louis Liu 2017-8-26

@Stephen Cobeldick @John D'Errico Thank for your help! I think I am too lazy because English content is too hard for me to understand... I will quit this bad habit and read more doc before I ask the question in the next time. Thank you again!

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