You can't have both positive and negative values as y variable. It should work if you exchange x and y in your data.
Hope this helps, Jean Le vendredi 01 février 2013 à 19:06 -0800, MrProsser a écrit : > I have a small dataset that I am trying to fit with a natural exponential > trend line in gnumeric. > > The data set is: > > y1: 1.948 x1: 2.303 > > y2: 1.197 x2: 2.996 > > y3: 0.367 x3: 3.912 > > y4: 0.109 x4: 4.605 > > y5: -0.019 x5: 5.298 > > y6: -0.072 x6: 6.215 > > I want to fit it with a curve of the form: y=a*e^(b*x) > > When I tried to fit this with an exponential in gnumeric I was not able to > get it to create any trend line. It would not display anything. > > I calculated the a and b parameters myself and plotted it in another > application and it looked reasonable, but for some reason I cannot get > gnumeric to generate this automatically. > > Does anyone have any idea why it won't work? _______________________________________________ gnumeric-list mailing list [email protected] https://mail.gnome.org/mailman/listinfo/gnumeric-list
