I have a=[1 2 5 4 2 7 4 8 2 3](10 values),b=[0 1 2 3],I want to fill a so that
a=[0 1 2 3 0 0 0 0 0 0],

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dpb
dpb 2014-4-9
There's nothing left so there's no point in doing anything except sotoo--
a=0; a(1:length(b))=b;
a=[b zeros(1,length(a)-length(b)];
An essentially innumerable ways to get there, choose one and go on.

3 个评论

It is not working
so fix the typo of I forgot that '0' is a scaler and won't fill...
a=zeros(size(a)); a(1:length(b)=b;
surely that's not too tough.
its perfect.Thanks a lot

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yousef Yousef
yousef Yousef 2014-4-9

0 个投票

assume I have d=[1 3 5 6 7 8 1 4 5 10],e=zeros(5,10),I want to take only the first 4 elements of d and fit them to the first row of e

1 个评论

Basically the same thing--just use colon operator to address the elements of concern ensuring the LHS and RHS have same length of subscripting.
All of these kinds of operations are in the "Getting Started" section of the documentation under array addressing. I suggest working thru those early sections and the exercises/examples therein to get the basics down.

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