Linewidth for function step?

I plotted something but not sure why I can't adjust the linewidth of the result of the plot. I was able to change colors but linewidth doesn't change.

step(value_1);
set(value_1, 'LineWidth', 2);

Answer 1

[Star Strider]

Get the outputs of the step function, then plot them using a plot call:

[y,t] = step(value_1);

figure
plot(t, squeeze(y), 'LineWidth',2)
grid

The Control System Toolbox plot functions do not allow you to alter their properties easily, if at all.

Answer 2

[Erick Oberstar]

This technique works for step, impulse, nyquist, and bode plots

LineWidth = 3;

s = tf(s)

sys = 1/(s+1)

figure; step/impulse/nyquist/bode(sys)

set(findall(gcf,'type','line'),'linewidth',LineWidth);

[Ajay Vaishnav]

Thanks! It works.