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Merging empty vector with double

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Joel
Joel il 13 Apr 2023
Risposto: Stephen23 il 13 Apr 2023
Hi
I have two vectors:
9x1
A=[1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9]
B=[]
I want to compare A and B in the same matrix. Like
9x2
C=[A B];
But B is empty, How can I display this in the same matrix?.
The length of the vectors will vary, so the number of rows in C should be the same as the longest vector out of A and B.
  2 Commenti
Stephen23
Stephen23 il 13 Apr 2023
Modificato: Stephen23 il 13 Apr 2023
"How can I display this in the same matrix?."
Display what exactly?
Numeric matrices cannot have "holes" in them, so what value/s would you put in the "empty" locations? By default, numeric matrices are filled with zeros, which then could not be distinguished from zeros from your actual data.
Joel
Joel il 13 Apr 2023
yes so if B is empty, I want it to be shown as 9 zeros or 9 ones if thats better

Accedi per commentare.

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Stephen23
Stephen23 il 13 Apr 2023
"if B is empty, I want it to be shown as 9 zeros"
A = [1;2;3;4;5;6;7;8;9];
B = [];
C = [];
C(1:numel(A),1) = A;
C(1:numel(B),2) = B
C = 9×2
1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0

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