How to create a for loop to do sums of every values in the whole row?

I have a matrix lets say a=[1,2,3;9,8,7;4,5,6]

I want to create a loop that will sum each row, like:

sum(a(1,:));

The problem is I want it to be repeated for every row.

Will appreciate any help! Cheers!

Answer 1

[KSSV]

a=[1,2,3;9,8,7;4,5,6] ;
b = zeros(size(a,2),1) ;
for i = 1:size(a,2)
    b(i) = sum(a(i,:)) ;
end
b
b1 = sum(a,2)

[Darkhan Kenestegi]

Thank you! But I get an error in my original code "index exceeds matrix dimensions". In my case I have 15 rows and 186 columns. Maybe My initial example was easier due to 3x3 matrix, but now we have irregular matrix.

[Darkhan Kenestegi]

Oh it's fine! I figured it out! I just changed conditions to for i = 1:size(a,1)

And that seems to solve the problem.

Thank you for your help.