Second X Axis

simply · Post by **simply** » Tue Jun 07, 2011 2:21 pm

Hi David,
I have a graph with X Axis of type Date and Time, I want to put a second axis (on the top), with the time from start, starting from 0 ending with the number of actual minutes. I 'm not sure that there is a way to do it!

simply · Post by **simply** » Thu Jun 09, 2011 11:45 am

how to use Elapsed time format?

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Post by **DPlotAdmin** » Thu Jun 09, 2011 2:24 pm

First you need the numeric form of the initial X. Switch to the default number format for the X axis and use the Scan data button to get that value. Call it T0 for our purposes. The equation for the top X axis would then be A=-T0*24 and B=24.

simply · Post by **simply** » Thu Jun 09, 2011 2:55 pm

Perfect

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