https://bugs.kde.org/show_bug.cgi?id=390865
--- Comment #7 from Alexander Semke <alexander.se...@web.de> --- (In reply to Colin Griffith from comment #5) > In case it's relevant, I suppose I should mention that the data I'm messing > with is 4401 data points, with X values ranging from 390 to 830, and Y > values ranging from 0 to 2. Most plots have 3 data sets plotted, and one > fitting curve for each (so 3 total fitting curves, and 6 curves total). > Usually I have 2 such data sets, and so 2 plots, making 12 curves total. > > The exact data can be downloaded from these pages: > http://www.cvrl.org/ciepr8dp.htm > http://www.cvrl.org/ciexyzpr.htm > > > To get the exact data files I'm using, choose these options on the form: > > 1st page: 2-degree cone fundamentals in Energy (linear) units with a > stepsize of 0.1nm, in CSV format. > > 2nd page: 2-degree XYZ color matching functions with a stepsize of 0.1nm, in > CSV format. I just tried out the data from the first page. I have no problems to plot and to fit to those three Gauss curves. I attached the screenshot of the results. The curves with the filled areas are the fitted results. To get this data quickly fitted in LabPlot: 1. import the csv file into a spreadsheet, use preview tab to check the results of the import settings 2. do a right click in the spreadsheet and select "Plot data" from the context menu and plot three curves in one single plot 3. do a right click on the curve (either in the plot or in the project explorer) and select Analysis/Fit/Gauss from the context menu 4. we fail to guess good starting values at the moment, so just provide a reasonable mean value for \mu and recalcute again. -- You are receiving this mail because: You are watching all bug changes.
