How to add two matrices with two different dimension?

There are two matrices, A and B.

A is 1000*1000 dimension.

B is 1000*1 dimension.

Each value of A is must be add to one column of B.

For example:

A(4*1)=

1

2

3

4

B(4*4)=

10 , 20, 30,40

30,40,50,60

50 ,60,70,80

70 ,80,90,100

I want matrix C such as:

C=

10+1, 20+2, 30+3,40+4

30+1,40+2,50+3,60+4

50+1 ,60+2,70+3,80+4

70 +1,80+2,90+3,100+4

I want to use for loop because I have 1000 data, I tried it does not give me correct answers.

Thank you

Answer 1

[Walter Roberson]

You can use repmat() and then add. More efficient is using bsxfun(@plus,A,B)

[Amin Gan]

I used for i=1000

bsxfun(@plus,A(:,1),B(10001,i))

end

but still gives me wrong number, can you please guide me more?

thank you

[Walter Roberson]

You have been inconsistent about your array sizes so I cannot tell which variable is which.

If your arrays were the shape of your 4x4 example then C = bsxfun(@plus, A, B)

That is the column vector first and the full array second