Hi Thomas,
Instead of:
TF1 f("", "exp(-x)", 0, 1, 0);
do
TF1 f("f", "exp(-x)", 0, 1);
and instead of:
TF1 f("", "(exp(x*[0])-1)/(exp([0])-1)", 0, 1,1);
do
TF1 f("f", "(exp(x*[0])-1)/(exp([0])-1)", 0, 1);
You are using the wrong constructor
Rene Brun
On Wed, 14 Aug 2002,
Thomas Bretz wrote:
> Hi,
>
> I tried to draw some TF1 function.
> First I tried to draw exp(-x) in the range between 0 and 1 (not 1 and 0!).
> TF1 f("", "exp(-x)", 0, 1, 0);
> f.Draw();
> What I got was a histogram binned from 1 to 0 (left to right) and from 1
> to 0 (bottom to top). But I preffer to have a binning from 0 to 1.
>
> The I tried to draw
> (exp(x*[0])-1)/(exp([0])-1)
> With [0] set to 1, 2, 3, or similar in the Range 0..1.
> TF1 f("", "(exp(x*[0])-1)/(exp([0])-1)", 0, 1, 1);
> f.SetParameter(0, 1);
> f.Draw();
> If I Draw the function I get non equidistant binning in both axis.
> (Neither X nor Y are set to Log-Scale) It is not a log-scale.
>
> I neither want the first behavour, nor the second one. How can I get rid
> of it?
>
> Thomas.
>
> PS: I'm using root 3.02/06
>
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