How to fix this LineWidth error?

For some reason i get an error when trying to increase the width of my plotline. The code is:

fplot(Cpsys,[min(x(:)) max(x(:))],'LineWidth',3)

It gives me the error "Error in color/linetype argument."

For extra info: whos Cpsys gives: Name = Cpsys, Size = 1x1, Bytes = 16, Class = function_handle

I'm using version R2015b.

Any idea how to fix this? i've seen you can change the default settings to avoid problems like this, but i really only want this line to be thicker.

Answer 1

[Jan]

The older fplot implementation did not allow to specify name-value pairs. Try:

[x,y] = fplot(Cpsys, [min(x(:)) max(x(:))])
plot(x, y, 'LineWidth', 3);

[Rick]

Awesome, thanks!