DPlot

I am trying to create a graph with two Y axes and I want to set the range on each separately to maximize their size, but it appears the program won't let me. I tried 1500 for the primary and 260 fro the secondary but it used higher values for both. The secondary was in the 400's

Also, I haven't been able to find a way to change the plot background color. Is this possible?
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HONDA AIRCRAFT COMPANY

The extents on both axes will be a multiple of whatever tick mark interval is used (whether DPlot chooses the interval or you do) and the number of intervals will be (almost always) the same. If none of that information helps, please save the graph as a DPlot file and send it to me.

Also, I haven't been able to find a way to change the plot background color. Is this possible?

Yes and no, but mostly no. Your Windows window background color will always be used. So if you change the window background color with Control Panel, that's the color you'll get. Of course doing this will change the window background color for all other applications, too.

If you want to change the color because you're making slides, for example, my suggestion (if you have PowerPoint) is to copy the graph to the clipboard and paste into PowerPoint. The default clipboard format is a metafile, which doesn't have a background - so you can make the background whatever color you want.