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From: Yoel Koenka on 7 Jul 2010 06:09
Hi all,
I have about a 100 x-y data files, and I'd like to sum them up to one x-y graph.
The thing is, the x values aren't necessarily exactly the same.
Meaning, in one file it can be x=1.5 and in the other x=1.49.
Is there a way to sum these graphs using bins of, let's say 0.1 width?
Thanks a lot!
Yoel
From: Steven Lord on 7 Jul 2010 09:59

"Yoel Koenka" <yoelk(a)tx.technion.ac.il> wrote in message
news:i11jo0$los$1(a)fred.mathworks.com...
> Hi all,
> I have about a 100 x-y data files, and I'd like to sum them up to one x-y
> graph.
> The thing is, the x values aren't necessarily exactly the same.
> Meaning, in one file it can be x=1.5 and in the other x=1.49.
> Is there a way to sum these graphs using bins of, let's say 0.1 width?
> Thanks a lot!
> Yoel
>

If you just want to plot them, use HOLD ON or HOLD ALL, although an axes
with 100 lines on it is going to look quite busy. Maybe creating some
number of subplots (using SUBPLOT) or creating several figures to store the
plots would be better.

If you're looking to actually add up the data, interpolate the data
(INTERP1) to the common x values at which you want to plot your data, and
then add up the interpolated y values corresponding to the same x.

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
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