[pstricks] histogram with logarithmic x-axis

[Herbert Voss]

Juergen Rose schrieb:

> I have some data between 1000 and 20000 with constant relativ errors.
> I want to plot some histogramms for these data with a logarithmical
> scaled x-axis, e.g. from 1000 to 20000 with 1000 bins or from 2000 until
> 2004 with 6 bins.
> I think it is no problem to take the logarithms of the data (get values
> between 3.3 and 4.3 or between 3.3010 and 3.3019, (log base 10)) and to
> count the number of data in the bins and to make a \listplot or a
> \psbarchart with these data. But the labels at the x-axix should not the
> logarithmic values but the original values (e.g. 2000, 4000, 8000, 16000
> in the first case and 2000, 2001, 2002, 2003, 2004 in the second case).
> 
> Is there some simple way to do this?

for a single graph use \multido for the labels and \pstScalePoints
for the plot.

Herbert