Graph Forums — Difference between point series and function

Re: Difference between point series and function

null@example.com (Ivan Johansen) — Fri, 03 Feb 2017 14:12:39 +0000

If the points are scattered equally, you can use Calc|Table to evaluate the function for the same x-cordinates. Otherwise you will have to use Calc|Evaluate. There is no easy way to subtract the coordinates inside Graph. It is probably easiest to use a spreadsheet for that.

Difference between point series and function

null@example.com (SH) — Fri, 03 Feb 2017 12:04:20 +0000

Dear Ivan,
I have plotted a point series and also function y=f(x) which seems to fit the points quite well. Is there a way I can plot the points which are the difference of the two so I can see the deviations between the measurements and the fitting function?
Bet Wishes,
SH