Dear Name-Brother, dear Rooters I am trying to fit some data and are severly stuck. Maybe, you and/or others can help me. I have N data (rows) of the form (x[i],y[i],z[i]) where I am trying to use TMultiDimFit. For AddRow() I used the mean as dependent quantitiy and StdDev as error. Following the example multidimfit.C in the tutorial I got a function MDF(). When I apply MDF() to the N data I get N parameters. Sorrowly, it is not quite clear to me how to use these parameters. What I need is the following: All data have to be transformed in a way that they scatter around the diagonal x=y=z. How do I have to use the parameters to achieve this? Is TMultidimfit the rigth way to do this? Thank you in advance for your help. Best regards Christian ---------------------------------- C.h.r.i.s.t.i.a.n S.t.r.a.t.o.w.a V.i.e.n.n.a, A.u.s.t.r.i.a
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