How to ignore domain values to match range values

I have this x/y values that does not have the same length. Since x label is the widest, I want to ignore some y values so that I can use them for later plotting.

I am proceding the following way:

 c = [1,2,3];
 t = [now :1: now + 6]
 x = sin(t)

I am trying to generate a code that reads the first n values of x to match the n values of c.

Can you please help?

[jjlivestrong]

I forgot to mention, c = y

[Matt Fig]

What do you mean, "x label is the widest"?

You mention n, but don't show n. Is n the length of c?

x(c) % returns the first 3 values of x.

Answer 1

[Walter Roberson]

x(1:length(c))