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dgavryus
Joined: 16 Jul 2018 Posts: 2
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Posted: Mon Jul 16, 2018 1:13 pm Post subject: Fitting a line to an XYS surface |
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I have an XYZ plot (x=0-78000, y=0-78000, 10.1k points) ranging from -10 to around -3.35. I need to fit a line to the points that are above -3.4. Is that possible with dplot?
The closest I could find is in Generate>XY plot from 3D surface or Generate>Best Fit Plane, but what i really need is an X=f(Y) or Y=f(X) line that follows the best fit curve of the 3D data.
Thanks for the help! |
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DPlotAdmin Site Admin

Joined: 24 Jun 2003 Posts: 2306 Location: Vicksburg, Mississippi
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Posted: Mon Jul 16, 2018 3:51 pm Post subject: |
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No, sorry, there is no way to do that. In the general case I can't see how this could (or at least should) be done, as those points could be all over the surface with no obvious line. _________________ David Hyde
support@dplot.com |
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dgavryus
Joined: 16 Jul 2018 Posts: 2
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Posted: Mon Jul 16, 2018 8:25 pm Post subject: |
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I see. That makes sense. Is there a way, then, to add an XY line to the existing graph? |
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DPlotAdmin Site Admin

Joined: 24 Jun 2003 Posts: 2306 Location: Vicksburg, Mississippi
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Posted: Tue Jul 17, 2018 6:47 am Post subject: |
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No, there isn't. _________________ David Hyde
support@dplot.com |
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