On May 30, 10:02=A0pm, Lewin Boehnke <n...@[EMAIL PROTECTED]
> wrote:
> Tim wrote:
> > On May 28, 6:53 pm, goog...@[EMAIL PROTECTED]
wrote:
> >> Tim wrote:
> >> > Hi All,
>
> >> > I've looked in the do***entation and online, and I can't seem to
find=
> >> > any way to do Gaussian smoothing.
>
> >> > Normally, I'd simply write a function for it, but the problem is
that=
> >> > this type of smoothing of course requires as many dimensions as
there=
> >> > are data points. That is, each point of data is scaled as a
function
> >> > of the height of all other points. Since (I think) GNUPLOT reads
one
> >> > line at a time from data files, I don't know if it's possible.
>
> >> > That said, GNUPLOT is so powerful, I can't see it not being able to
d=
o
> >> > something like this. Could somebody please point me in the right
> >> > direction?
>
> >> > Cheers,
>
> >> > Tim.
>
> >> Gnuplot is primarily a plotting tool . This is probably the sort of
> >> data processing task you could do externally , either before calling
> >> gnuplot of by using gnuplot's system() command.
>
> >> Having said that someone just posted a patch to do something like
this
> >> to gnuplot-beta mailing list. You may like to get current cvs
> >> gnuplot , add that patch and test it.
>
> >> BTW if you want to write some code you can do gaussian smoothing by
> >> applying a finite kernel filter. In practice this is just a few
values
> >> depending on the width of your gaussian filter, not the all your data
> >> points.
>
> > I don't really want to keep a lot of extra numbers around. These files
> > will be somewhat large and numerous, so it could become confusing very
> > fast.
>
> > If I write a program which outputs the smoothed data to stdout, could
> > I somehow run it within gnuplot and directly read the output? Not that
> > it's a big issue to write to a tem****ary file, but I would somehow
> > like something cleaner.
>
> As I was teached in this newsgroup just a few weeks ago, "plot '<
myscript=
'"
> does just that. So "plot '< smooth mydata.dat'" is probably what you
want.=
>
> Lewin
nonsense!
smooth option fits a spline which is absolutely nothing to do with
gaussian.
also your command in not good.
BTW past tense of teach is taught, not teached. You probably meant
learnt anyway. That's fine , you're not native English speaker, but
avoid giving bogus "help".
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