Merging empty vector with double

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.

[Stephen23]

"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]

yes so if B is empty, I want it to be shown as 9 zeros or 9 ones if thats better

Answer 1

[Stephen23]

"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