[ROOT] Plotting TF1 on a log scale

From: Bram Wijngaarden (dwijngaa@hef.kun.nl)
Date: Fri Jun 13 2003 - 14:26:37 MEST


Hi,

I used to be able to plot functions on a log scale but recently I get the
"Error in <THistPainter::PaintInit>: log scale requested with zero or
negative argument (0.000000)" error when I try to do this. Is this a bug,
a feature, and more importantly, how do I get around it?

Sample code snippet:

new TCanvas();
TF1* test = new TF1("test", "gaus", -10, 10);
test->SetParameters(100, 0, 1);
test->Draw(); // OK
gPad->SetLogy();
test->Draw(); // Not OK

Thanks,
Bram

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D.A. Wijngaarden	Meijhorst 6422
AiO KUN-EHEF		6537 LE Nijmegen
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