Eric, Tony, thanks for your replies. I'll look at SciPy then for this functionality.
Thanks, --Michiel. --- On Sat, 4/24/10, Eric Firing <efir...@hawaii.edu> wrote: > From: Eric Firing <efir...@hawaii.edu> > Subject: Re: [matplotlib-devel] Lowess smoothing > To: "Michiel de Hoon" <mjldeh...@yahoo.com> > Cc: matplotlib-devel@lists.sourceforge.net > Date: Saturday, April 24, 2010, 2:29 PM > Michiel de Hoon wrote: > > Hi everybody, > > > > A number of years ago I wrote a function to do Lowess > smoothing to calculate a smooth curve through a scatter > plot. I copied an example script below and attached the > resulting figure to this mail. > > I think that such a smoothing function would be a > useful addition to matplotlib. Does anybody have any > objections against me adding this to matplotlib? If not, > what would be a suitable place to put this function? > > > > --Michiel. > > > > Michiel, > > Certainly it would be good to have that function available, > but I'm not in favor of putting it in mpl. The trend > has been to try to reduce overlap among mpl, numpy, and > scipy. To that end, scipy seems like the natural home > for smoothing functions. > > Eric > > > > > from pylab import * > > > > x = arange(0,10,0.01) > > ytrue = exp(-x/5.0) + 2*sin(x/3.0) > > > > # add random errors with a normal distribution > > y = ytrue + normal(size=len(x)) > > scatter(x,y,color='cyan') > > > > # calculate a smooth curve through the scatter plot > > ys = smooth(x, y, 'lowess') > > plot(x,ys,'red',linewidth=3) > > > > # draw the true values for comparison > > plot(x,ytrue,'green',linewidth=3) > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > > ------------------------------------------------------------------------ > > > > > ------------------------------------------------------------------------------ > > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Matplotlib-devel mailing list > > Matplotlib-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > > ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
