DPlot

Could you let me know what, if any, options are available to anti-alias or smooth the graph lines? Are there anti-aliasing options that can be enabled? Higher resolution for plotting the graph lines?

As always, thanks for your help.

Select Options>General and select "Antialias objects on display output". The default "Turn off antialiasing if a curve has more than:" 5000 points generally works well, though you might want to increase that if you're plotting more than 3 or 4 curves.

Be warned: drawing antialiased lines is quite a bit slower than normal lines. And it doesn't do anything to improve appearance on line segments that are less than 3 or 4 pixels long.

How would I set the threshold at which aliasing is turned off via an excel macro?

Can't be done, sorry. I'll add this next time.