Adjusting dash length in TGraphs

I am trying to make a plot with three lines, one solid, one dashed and one dotted. However, when I include the plot in my paper draft (double column), it is so small that the dashed line looks dotted and the dotted line looks almost solid. So, how do I adujst the spacing of dashes and dots? I’ve tried SetLineWidth, but this changes the width, not the length.

See: … tyleString


Thanks for the help! This does, indeed, allow me to customize dashes in an output .ps or .eps file. However, the root pad still just uses the default linestyles. How do I get the root pad to use the same linestyles as the output files?

This is not implemented for the pad. In general the screen resolution
is not good enough to implement it correctly