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add vector to an existing matrix

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Locks am 10 Apr. 2013
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?

Akzeptierte Antwort

James Tursa
James Tursa am 10 Apr. 2013
Did you mean this?
data9(:,9) = moneyness;
Another way to do it:
data9 = [data8 moneyness];
  2 Kommentare
Locks am 10 Apr. 2013
perfect, thanks
Maria-Augusta Miceli
Maria-Augusta Miceli am 5 Dez. 2021
Perfect, great!

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Weitere Antworten (1)

Susan am 10 Apr. 2013
Bearbeitet: Susan am 10 Apr. 2013
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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