How can I use corrcoef command?

Hello.

I generated two signal.

t = 1:0.01:1.5; y1 = sin(2*pi*t3) y2 = y1 y3 = 2*y1

y1 and y2 are same signal, y1 and y3 are not same.

I want find similarity of signals between y1 and y2, y1 and y3.

so I use corrcoef command

*R = corrcoef(y1,y2);

R2 = corrcoef(y1,y3);*

R(1,0) value is "1" .

I predicted this output. correct.

But and R2(1,0) are "1" too....!

I want to distinguish between the two signals.

What should I do?

Have a good day.