Optionally create plots inside function

I have a function

y=myfun(x)
y=3*x;
plot(x, y)

If x=[1 2 3 4 5]; then the plot will be plotted. Is there anyway to control if I want to make the plot or not?

Answer 1

[Image Analyst]

Yes. Don't call plot() if you don't want it plotted.

[Giorgos Papakonstantinou]

Thank you, exactly what I had in mind.