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Hideo Fujii
USA
1582 Posts |
 Posted - 10/27/2011 : 4:59:42 PM
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Hi,
Have you tried "Analysis: Mathematics: Simple Curve Math" menu?
Here you can select "Divide" operator, operand=Reference Data. (You may want to choose <New>" if you want to preserve the original curve.)
Or, if you want to control more details as lengthy, you can run the interpolation to get the corresponding X values for both curves. Here is one way to do for the data such that, let's say that you have A(X)B(Y)C(X)D(Y) columns:
1) Highlight col(A), and choose "Analysis: Mathematics: Interpolate/Extrapolate" menu.
2) Turn OFF "Auto" check boxes for Number of Points, X Min, and X Max,
and enter appropriate values, say 101, 0.0, and 1.0, respectively.
This creates an interpolated Y col(E) with initial=0 interval=0.01 .
3) Do the same 2) for col(D) with same settings to create col(F).
4) Add a column, col(G), and open Set Column Values tool, and enter the following formulae:
col(E)/col(F)
[in Before Formula Scripts]:
range cE=col(E);
range cG=col(G);
cG.xinit=cE.xinit;
cG.xinc=cE.xinc;
Here the last two commands copy the initial value and the interval of column E to this new column G.
I hope this is helpful.
--Hideo Fujii
OriginLab |
Edited by - Hideo Fujii on 10/27/2011 5:31:39 PM |
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Dividing two Curves
