**Next message:**Rene Brun: "Re: [ROOT] TFormula"**Previous message:**Edmond Offermann: "Re: [ROOT] TMinuit and ACLIC"**In reply to:**Alexander Wagner: "[ROOT] TGraphAsymmErrors()"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

Alexander, -send the shortest possible script reproducing your problem -indicate which ROOT version you use Rene Brun On Mon, 19 Jul 2004, Alexander Wagner wrote: > Hi! > > Just a short question: Consider a dataset which looks > somewhat like this: > > 409.00000 0.2875184 0.0251621804162307 > 421.00000 1.08303395 0.0488355952731649 > [...] > > That is x-value, y-value and the error estimated. Now this > error is symmetric, but I wrote some general function to > plot errors which uses TGraphAsymErrors(). Just setting xlow > and xhigh to the same value. > > It seems root doesn't like my data. Especially not the 0.x > errors. I get a fine plot of the data line but no error > bars. Now if I multiply this two colums by a constant so > that the errors are .gt. 1 I get nice error bars. Did I miss > something in the docs or is it intended for the error-graphs > to deal only with errors .gt. 1? > > Well I solve my problem just by multiplication which is in a > way ok with me at the moment. Maybe I made a dumb mistake > somewhere? > >

**Next message:**Rene Brun: "Re: [ROOT] TFormula"**Previous message:**Edmond Offermann: "Re: [ROOT] TMinuit and ACLIC"**In reply to:**Alexander Wagner: "[ROOT] TGraphAsymmErrors()"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

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