count even elements vector

I have wrote this to identify the even numbers x = vec(mod(vec,2)==0); how do I edit it so it returns how many integers of even numbers there are within this single command.

Answer 1

[Guillaume]

Isn't it trivial? Using sum:

sum(mod(myvec, 2) == 0)

Or using nnz:

nnz(mod(myvec, 2) == 0)

Answer 2

[Kevin Chng]

you may use length(), or numel()

Answer 3

[Image Analyst]

Yet another option, this time using rem() for remainder:

myvec = randi(10, 1, 20) % Sample data.
numEvenNumbers = sum(rem(myvec, 2) == 0)