how to multiply a row with 1st and 2nd row of a matrix seperately

>> y_0

y_0 =

0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1

>> z

z =

1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0

1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0

I am trying to multiply y_0 with row 1 of z and row 2 of z. but I am not sure how

i tried :z and z: but its giving errors. Kindly help

[Panda Girl]

xor(y_0 with row1 of z)

and xor(y_0 with row 2 of z)

Answer 1

[Cris LaPierre]

You want to use element-wise multiplication.

If you are new to MATLAB, I'd suggest MATLAB Onramp. Chapter 6 talks about performing calculations with arrays.

Answer 2

[Star Strider]

One option is to use the bsxfun (link) function:

y_0 = [0     1     1     0     1     0     0     1     0     1     1     0     1     0     0     1];

z = [1     1     1     1     0     0     0     0     1     1     1     1     0     0     0     0
     1     0     0     1     0     1     1     0     1     0     0     1     0     1     1     0];

Out = bsxfun(@xor, y_0, z)

producing:

Out =
  2×16 logical array
   1   0   0   1   1   0   0   1   1   0   0   1   1   0   0   1
   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1