Re: smoothing xy line plot

Dear NCL and Mary

Yes, weighted least squares polynomial fit is what i need.
I have another problem of converting the "pdf" output of line plots
produced by NCL using this command:

*convert -trim +repage -density 100 resting_atm.pdf resting_atm.png*

Some of colors of the line plot are dissaperead and worst.
Anybody has experience in hadling this problem? or saving the *png output
using NCL with
high resolution output?

Thanks a lot

== Xi

On Tue, Dec 4, 2012 at 2:26 AM, Mary Haley <haley@ucar.edu> wrote:

> See also example scatter_9.ncl at:
>
> > http://www.ncl.ucar.edu/Applications/interp1d.shtml
>
> This uses lspoly.
>
> --Mary
>
> On Dec 3, 2012, at 10:06 AM, Mary Haley wrote:
>
> > We don't have any graphical resources that you can use for smoothing a
> line, but do you mean something like the function "lspoly" or "ftcurv"?
> >
> > http://www.ncl.ucar.edu/Document/Functions/Built-in/lspoly.shtml
> > http://www.ncl.ucar.edu/Document/Functions/Built-in/ftcurv.shtml
> >
> > You can see a graphical example of ftcurv at:
> >
> > http://www.ncl.ucar.edu/Applications/interp1d.shtml
> >
> > --Mary
> >
> >
> > On Dec 2, 2012, at 3:28 PM, Xi Chang wrote:
> >
> >> HI NCL,
> >>
> >> Is there any way how to smooth the xy line plot using NCL?
> >>
> >> Thanks a lot
> >> Xi
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Received on Mon Dec 3 12:42:43 2012