Hi Rahul
On Thu, Feb 14, 2008 at 7:50 PM, Rahul Dabane <[EMAIL PROTECTED]> wrote:
> I'm trying to do something like following...
> I've two data files: file1 and file2 with 2 columns each
> file1 file2
> d1 t1 x1 y1
> d2 t2 x2 y2
> d3 t3 x3 y3
>
> I want to plot following type information in addition to plotting file1
> and file2 on same plot
> f(d1,x1) f(t1,y1)
> f(d2,x2) f(t2,y)
> f(d3,x3) f(t3,y3)
>
> where f is not complicated...
>
There might be a simpler way to do it, but this seems to work:
--------------------- pyx-2file.py ---------------------------
import pyx
# Get dict of columns from first data file
columns = pyx.graph.data.file('f1.dat').columns
# Merge in columns from second data file
columns.update(pyx.graph.data.file('f2.dat').columns)
# Make a PyX data source from the combined dict
dd = pyx.graph.data.values(**columns)
g = pyx.graph.graphxy(width=10,
x=pyx.graph.axis.lin(),
y=pyx.graph.axis.lin(),
)
g.plot([
# Columns from first file
pyx.graph.data.data(dd, x='d', y='t'),
# Columns from second file
pyx.graph.data.data(dd, x='x', y='y'),
# Some function of columns from both files
pyx.graph.data.data(dd, x='d+x', y='t+y'),
])
g.writePDFfile("pyx-2file")
--------------------------------------------------------------
------------------------ f1.dat ------------------------------
# d t
1 10
2 20
3 30
--------------------------------------------------------------
------------------------ f2.dat ------------------------------
# x y
7 17
8 28
9 39
--------------------------------------------------------------
HTH
Cheers
Will
--
Dr William Henney, Centro de Radioastronomía y Astrofísica,
Universidad Nacional Autónoma de México, Campus Morelia
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
PyX-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/pyx-user
