help I need matlab code that multiply each element in each coulmn by a each element in avector with the same length

help I need matlab code that multiply each element in each coulmn by a each element in avector with the same length

Answer 1

[Star Strider]

Use bsxfun:

m  = rand(10,5);
v = rand(10,1);
vm = bsxfun(@times, v, m);

Here, ‘m’ is the matrix, ‘v’ is the vector, and ‘vm’ is the element-by-element product of the columns of ‘m’ and column vector ‘v’.

[maha ismail]

 it doesn't work my matlab version is 6.5

2002

[Star Strider]

See if this works:

for k1 = 1:size(m,2)
    vm(:,k1) = v .* m(:,k1);
end

If it doesn’t work for you, I’m certain this will:

for k1 = 1:size(m,2)
    for k2 = 1:size(m,1)
        vm(k2,k1) = v(k2) .* m(k2,k1);
    end
end

You will get the same result with every version of my Answer.

[maha ismail]

Thanks for your answers. ..yes it works

[Star Strider]

My pleasure!