add vector to an existing matrix

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Locks
Locks 2013-4-10
评论： Maria-Augusta Miceli 2021-12-5
hi,
I have the follogin problem: I have a matrix cosisting of 8 columns and 19599 rows and I would first generate a column vector with 19599 elements and add this to the existing matrix. I tired the following:
data9= zeros(size(data8,1),9);
data9(:,1:8) = data8;
where data 8 is the existing matrix with 8 columns and I am intending to create a nineth column which can be fillled.
than I create the clumn vector called moneyness which is a double vecotr
and then I did
data9(i,9) = moneyness;
unfortunately, this gives me the following error message:
Subscripted assignment dimension mismatch.
Error in construct_data (line 36) data9(i,9) = moneyness;
IS there anybody who can help me?

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采纳的回答

James Tursa
James Tursa 2013-4-10
Did you mean this?
data9(:,9) = moneyness;
Another way to do it:
data9 = [data8 moneyness];

更多回答（1 个）

Susan
Susan 2013-4-10
编辑：Susan 2013-4-10
data9 = zeros(size(data8,1),1);
data9 = [data8,data9];
This will concatenate the variables together, giving you a 19599 x 9 matrix.

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