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Hideo Fujii
USA
1582 Posts |
 Posted - 11/21/2011 : 2:43:30 PM
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Hi,
If you want to do the linear fitting from a graph which contains multiple plots, you can perform the multiple-data fitting. To do so, first open the Linear Fit tool dialog, press a small triangle button at the "Input Data" option branch, choose "Add All Points in Active Page" fly-out, and choose "Independent" at the "Multiple-Data Fit Mode" branch.
If you want to do this fitting from the worksheet data, say that your data columns are arranged as XYY, highlight all Y columns, and start fitting as usual. Here, you can select the "Independent" at the "Multiple-Data Fit Mode" branch.
Hope this is helpful.
--Hideo Fujii
OriginLab |
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Two linear curves on one graph?
