extract every two rows from the data

Hi all,

i would like to inquire for possible solutions for my problem.

for example if i have a set of data (10x1 matrix):

1

2

3

4

5

6

7

8

9

10

i want to extract every two rows to do multiplication with a 5x1 matrix:

1

2

3

4

5

how can i do that ? my final results should be:

1

2

6

8

15

18

28

32

45

50

i made attempt to acquire a solution but i don't think i did it correctly.

r=[1;2;3;4;5];

m=size(data,1); i=1:2:m; j=2:2:m; n=[data(i) data(j)];

results=r.*n;

many thanks :)

[Sean de Wolski]

I'm not clear how you got the final results. From the explanation I would've expected:

1*1
2*3
3*5
4*7
5*9

or

((1:5).').*x(1:2:end);

Answer 1

[Image Analyst]

Here's one possible solution:

data = [1;2;3;4;5;6;7;8;9;10]
m=[1;2;3;4;5]
% Use imresize() in the Image Processing Toolbox.
out = data .* imresize(m,[length(data),1],'nearest')