Add column in specific number range to available table

Hi. I have a 1650x3001 table named A. I want to add a column named B in number from 400 to 2970 that fit the row size, how can I do that?

I have try this but not work, say "Unable to perform assignment because the size of the left side is 1650-by-1 and the size of the right side is 1-by-2571"

A.B(:,1) = (400:2970);

Thanks for your help.

Answer 1

[Fangjun Jiang]

try this

A.B(:,1) = randi([400,2970],[1650 1])

understand this. Generate a 3x1 matrix with random interger value that is between 1 and 10

randi([1 10],[3,1])

ans = 3x1

1 6 2

help randi

Answer 2

[VBBV]

A.B(:,1) = (400:2970).';  % use transpose

[VBBV]

@Phuong If i understand your question right, you want to add a column within the range of columns, then you need to use position index and join functions to add the column

pos = 410; % e.g
if pos >=400 & pos <=2970
    pos = pos;
else
    disp('')
end
B = table(rand(1650,1));
A = join(A,B,'Keys',[pos 1])% join at the specific position