thickening plotlines

newbie question alert. Is there a way to thicken the

    > plotlines on a plot? I'm currently using fmt='k^-' and am
    > trying to make transparencies. I want the plotlines to show
    > up better. Any way to do this?

Hi Danny,

You may want to take a look at which shows several
ways of setting linewidths and other line properties. In addition to
the way Gary showed, you can also use keyword arguments

plot(x ,y, linewidth=2.0)

The default linewidth is controlled by the lines.linewidth property in
your matplotlibrc file -- see