Clear Filters
Clear Filters

How to create this matrix not using loops and if/else statements?

3 views (last 30 days)
Hello. I have a problem with creating matrix like this without using loops and if/else statements. It must have 5 columns and N rows.
0 1 1 1 0/(N-1)
0 1 1 2 1/(N-1)
. . . 3 2/(N-1)
. . . . .
0 1 1 N (N-1)/(N-1)
I ended up with this:
A1 = [0 1 1 N (N-1)/(N-1)];
A2 = reshape(A1, [], N);
A = repmat(A2, N, 1)
----------------------------
(N = 5)
ans =
0 1 1 5 1
0 1 1 5 1
0 1 1 5 1
0 1 1 5 1
0 1 1 5 1

Accepted Answer

Can Atalay
Can Atalay on 17 Oct 2021
Edited: Can Atalay on 17 Oct 2021
number_of_columns = 5;
number_of_rows = 10; % you can change this to N
first_column = zeros(number_of_rows,1);
second_and_third_columns = ones(number_of_rows,2);
fourth_column = transpose(1:number_of_rows);
fifth_column = transpose(0:(number_of_rows-1))/(number_of_rows-1);
end_result = [first_column second_and_third_columns fourth_column fifth_column]
% end_result = [first_column, second_and_third_columns, fourth_column, fifth_column]
% the line above would also work
Did I get the question right? This should work if you change the second line's value from 10 to N

More Answers (0)

Categories

Find more on MATLAB Compiler in Help Center and File Exchange

Products


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!