Hi Daniel,
On Tue, 3 Dec 2002, Daniel Holmes wrote:
> Hello RootFans,
>
> anyone any ideas.??:...
>
> 1/i have a bar chart which upon which i would like to set the y axis as a
> log axis: i rt click on the axis and select "selectLogY". ..i then get
> the error message:
>
> Error in <THistPainter::PaintInit>: log scale requested with zero or
> negative argument (0.000000)
>
> ..i think this is not true, in fact i am reading out the (5) values as i
> fill my bar chart and they are all well above 0. ,my number of bins is 5
> so there are no non filled bins. ..any thoughts anyone??
Somewhere you must have set the minimum to 0 or a negative value
>
>
> 2/ I use some standard commands everytime i use root but some don't seem
> to work from within a kumac.
>
> examples are in:
> /afs/cern.ch/user/d/dholmes/public/
>
> any ideas on either of these problems are much appreciated..
the commands like .L file.C can only be typed at the command line.
Within a macro, do, eg:
gROOT->ProcessLine(".L h3003.C");
Rene Brun
>
> cheers,
>
> Dan.
>
>
>
>
>
>
>
> CMS-Bristol
> http://cern.ch/dan.holmes
>
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