[Gnuplot-info] building histogram chart with multiple data files

[seb_kramm <seb...@ya...>]

Hello gnuplot user's,

I'm new here, sorry for what may be a silly question...

I was very happy to find that 4.2 had histograms charts added, however, I have a 
question about it's usage.

 From the demos, it seems that it can only build that type of chart with multicolumn 
data files. And what I have is several 2 columns data files, produced by an app, with 
a parameter setting that changes between them.

Example:

# File1 |# File 2 |# File 3 |
# x - y |# x - y  |# x - y  |
1  3.4  |1  3.6   |1  3.7   |
2  4.5  |2  2.3   |2  3.3   |
3  2.4  |3  1.1   |3  3.5   |
  ...       ...       ...

Is there a way I can build an bar chart (histogram) out of these files ?
Reconsidering the way the files are build isn't easy, as there's a lot of preliminary 
computing for each, I just can't switch easily from a setting to another.

If not, maybe that's an idea of futur feature ?
Thank you all,