matplotlib-users Mailing List for matplotlib

Hi,
I was looking at the autocorrelation of a time series recently and it was
useful to scale the x-axis (i.e. multiply lags by the timestep of my actual
data). It's a trivial change, but it might be useful for others. Here's a
standalone version of axes.acorr:
def scaledacorr(x, stepsize=1, normed=False, detrend=mlab.detrend_none,
 usevlines=False, maxlags=None, **kwargs):
 import numpy as np
 x = detrend(np.asarray(x))
 Nx = len(x)
 y = x
 c = np.correlate(x, y, mode=2)
 if normed: c/= np.sqrt(np.dot(x,x) * np.dot(y,y))
 if maxlags is None: maxlags = Nx - 1
 if maxlags >= Nx or maxlags < 1:
 raise ValueError('maglags must be None or strictly '
 'positive < %d'%Nx)
 lags = np.arange(-maxlags,maxlags+1) * stepsize
 c = c[Nx-1-maxlags:Nx+maxlags]
 if usevlines:
 a = vlines(lags, [0], c, **kwargs)
 b = axhline(**kwargs)
 else:
 kwargs.setdefault('marker', 'o')
 kwargs.setdefault('linestyle', 'None')
 a, = plot(lags, c, **kwargs)
 b = None
 return lags, c, a, b
-- 
Michael Lerner, Ph.D.
IRTA Postdoctoral Fellow
Laboratory of Computational Biology NIH/NHLBI
5635 Fishers Lane, Room T909, MSC 9314
Rockville, MD 20852 (UPS/FedEx/Reality)
Bethesda MD 20892-9314 (USPS)

Hi,
I found the problem. It was not a bug of matplotlib (of course should I say). It was a bug in my
code (with the click event handling method).
Jonathan
Demaeyer Jonathan a écrit :
> Hi everyone,
> 
> I use matplotlib to render a figure in a tkinter (the Tix library more precisely) canvas.
> It works very well but I can't turn off the autoscale (and I would like to), even by setting
> ax.set_autoscale_on(False). When I test with ax.get_autoscale_on(), the result is False, but the
> axes continues to autoscale.
> 
> I didn't had this problem in the past with ubuntu 8.04. I have it since I made the update to the
> 8.10 distribution so I guess that it's because the version of matplotlib I use have changed also
> (but I don't remember the number of this previous version). Now I use python 2.5.2, Tix 8.4.0, mpl
> 0.98.3, numpy 1.2.1 ppa release, scipy 0.7.0 ppa release.
> 
> Here is the graphic part of my app :
> 
> class GraphFrame(Tix.Frame):
> def __init__(self,master):
> Tix.Frame.__init__(self,master,bd=10)
> self.gen = Tix.Frame(self)
> self.fps = Figure(figsize=(5,4),dpi=100,facecolor='w')
> 
> self.tlps = 'Phase Space'
> self.xlps = {'xlabel' : r'$x$','fontsize' : 16}
> self.ylps = {'ylabel' : r'$p$','rotation' : 'horizontal','fontsize' : 16}
> self.aps = self.fps.add_subplot(111)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> self.canvasps = FigureCanvasTkAgg(self.fps,master=self.gen)
> self.canvasps.get_tk_widget().pack(side=Tix.TOP,fill=Tix.BOTH,expand=1)
> self.toolbar = NavigationToolbar2TkAgg(self.canvasps, self.gen)
> self.toolbar.update()
> self.canvasps._tkcanvas.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
> self.gen.grid(row=0, columnspan=14, sticky='NWSE')
> self.aps.set_autoscale_on(False) #doesn't work !!!
> # self.aps.autoscale_view(scalex=False,scaley=False)
> self.psLin = []
> self.cl = ('r','g','b','c','y','m','k')
> self.coch = self.canvasps.mpl_connect('button_press_event', self.onpsclick)
> self.crh = self.canvasps.mpl_connect('button_release_event', self.onpsrelease)
> self.cmh = self.canvasps.mpl_connect('motion_notify_event', self.onpsmotion)
> self.cFrame = None
> self.press = False
> 
> def ocps_connect(self):
> self.coch = self.canvasps.mpl_connect('button_press_event', self.onpsclick)
> self.crh = self.canvasps.mpl_connect('button_release_event', self.onpsrelease)
> self.cmh = self.canvasps.mpl_connect('motion_notify_event', self.onpsmotion)
> 
> def ocps_disconnect(self):
> self.canvasps.mpl_disconnect(self.coch)
> self.canvasps.mpl_disconnect(self.crh)
> self.canvasps.mpl_disconnect(self.cmh)
> 
> #some method I use to update the graph
> 
> def psaddData_m(self,u,xmin,xmax,pmin,pmax,m=','):
> line = lines.Line2D(u[:,0],u[:,1],
> linestyle='None',
> marker=m,
> color=self.cl[np.mod(len(self.psLin)-1,6)])
> self.psLin.append(line)
> self.psDraw(xmin,xmax,pmin,pmax)
> 
> def psaddData_l(self,u,xmin,xmax,pmin,pmax,l='-'):
> line = lines.Line2D(u[:,0],u[:,1],
> linestyle=l,
> color=self.cl[np.mod(len(self.psLin)-1,6)])
> self.psLin.append(line)
> self.psDraw(xmin,xmax,pmin,pmax)
> 
> def psdelData(self,n):
> del self.psLin[n]
> self.aps.clear()
> # self.aps.cla()
> for l in self.psLin:
> self.aps.add_line(l)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> 
> 
> def psDraw(self,xmin,xmax,pmin,pmax):
> # self.aps.clear()
> self.aps.cla()
> self.aps.set_xlim(xmin,xmax)
> self.aps.set_ylim(pmin,pmax)
> for l in self.psLin:
> self.aps.add_line(l)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> self.aps.draw()
> self.canvasps.blit()
> # self.aps.set_autoscale_on(False)
> # self.aps.autoscale_view(scalex=False,scaley=False)
> # a = self.aps.get_autoscale_on()
> # print a
> 
> def psifRedraw(self):
> self.aps.clear()
> # self.aps.cla()
> for l in self.psLin:
> self.aps.add_line(l)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> 
> def psRedraw(self):
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> 
> # click event handling
> 
> def onpsclick(self,event):
> 
> Bhv=self.cFrame.stDico['psMode'].get()
> 
> if event.inaxes!=self.aps: return
> if Bhv == 'Nothing': return
> 
> self.press = True
> 
> if Bhv == 'Traj':
> 
> 
> niter=int(self.cFrame.stDico['n iter'].get())
> jb = self.cFrame.TrajJacob.get()
> if jb:
> lj = float(self.cFrame.TJDirlStr.get())
> hj = float(self.cFrame.TJDirhderStr.get())
> jnb = self.cFrame.nTrajJacob.get()
> if jnb:
> ljn = float(self.cFrame.nTJDirlStr.get())
> hjn = float(self.cFrame.nTJDirhderStr.get())
> 
> v = np.array([event.xdata,event.ydata])
> s = [v]
> if jb: sj = [Jacob(v,hj,utils.dfridr)]
> if jnb: sjn = [Jacob(v,hjn,utils.dfridr)]
> for i in xrange(0,niter):
> u = pm.Map(v)
> s.append(u)
> v = u
> if jb: sj.append(Jacob(v,hj,utils.dfridr))
> if jnb: sjn.append(np.dot(sjn[-1],Jacob(v,hjn,utils.dfridr)))
> w = np.vstack(s)
> line = lines.Line2D(w[:,0],w[:,1],color='b')
> if jb:
> for i in xrange(len(sj)):
> J = sj[i]
> v = s[i]
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The point '+str(i+1)+' is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> else:
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-lj*u1,v+lj*u1])
> ul2 = np.vstack([v-lj*u2,v+lj*u2])
> line1 = lines.Line2D(ul1[:,0],ul1[:,1],color='b')
> line2 = lines.Line2D(ul2[:,0],ul2[:,1],color='r')
> self.aps.add_line(line1)
> self.aps.add_line(line2)
> if jnb:
> for i in xrange(len(sjn)):
> J = sjn[i]
> v = s[i]
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The traj '+str(i+1)+' is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> else:
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-ljn*u1,v+ljn*u1])
> ul2 = np.vstack([v-ljn*u2,v+ljn*u2])
> line1 = lines.Line2D(ul1[:,0],ul1[:,1],color='g')
> line2 = lines.Line2D(ul2[:,0],ul2[:,1],color='m')
> self.aps.add_line(line1)
> self.aps.add_line(line2)
> 
> elif Bhv == '1it':
> v = np.array([event.xdata,event.ydata])
> u = pm.Map(v)
> w = np.vstack([v,u])
> line = lines.Line2D(w[:,0],w[:,1],
> linestyle='None',
> marker='+',
> markersize=10.,
> color='k')
> elif Bhv == 'Preim':
> 
> xmin=float(self.cFrame.stDico['pixmin'].get())
> xmax=float(self.cFrame.stDico['pixmax'].get())
> pmin=float(self.cFrame.stDico['pipmin'].get())
> pmax=float(self.cFrame.stDico['pipmax'].get())
> nx=int(self.cFrame.stDico['pinx'].get())
> ny=int(self.cFrame.stDico['pinp'].get())
> tol=float(self.cFrame.stDico['pitol'].get())
> it=int(self.cFrame.stDico['piter'].get())
> al=float(self.cFrame.stDico['pialpha'].get())
> npim = self.cFrame.preimmVar.get()
> 
> v = np.array([event.xdata,event.ydata])
> u = preMap(npim,v,xmin,xmax,pmin,pmax,nx,ny,tol,it,al)
> if u != None:
> w = np.vstack([v,u])
> else:
> w = v
> w.shape = 1,2
> line = lines.Line2D(w[:,0],w[:,1],
> linestyle='None',
> marker='+',
> markersize=10.,
> color='k')
> 
> elif Bhv == 'Jacob':
> l = float(self.cFrame.DirlStr.get())
> h = float(self.cFrame.DirhderStr.get())
> v = np.array([event.xdata,event.ydata])
> J = Jacob(v,h,utils.dfridr)
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The point is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> return
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-l*u1,v+l*u1])
> ul2 = np.vstack([v-l*u2,v+l*u2])
> line = lines.Line2D(ul1[:,0],ul1[:,1],color='b')
> line1 = lines.Line2D(ul2[:,0],ul2[:,1],color='r')
> self.aps.add_line(line1)
> 
> self.aps.add_line(line)
> # self.aps.set_title(self.tlps)
> # self.aps.set_xlabel(**self.xlps)
> # self.aps.set_ylabel(**self.ylps)
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> 
> def onpsmotion(self,event):
> 
> Bhv=self.cFrame.stDico['psMode'].get()
> 
> if event.inaxes!=self.aps: return
> if self.press == False: return
> if Bhv == 'Nothing': return
> 
> self.aps.clear()
> # self.aps.cla()
> for l in self.psLin:
> self.aps.add_line(l)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> 
> if Bhv == 'Traj':
> 
> 
> niter=int(self.cFrame.stDico['n iter'].get())
> jb = self.cFrame.TrajJacob.get()
> if jb:
> lj = float(self.cFrame.TJDirlStr.get())
> hj = float(self.cFrame.TJDirhderStr.get())
> jnb = self.cFrame.nTrajJacob.get()
> if jnb:
> ljn = float(self.cFrame.nTJDirlStr.get())
> hjn = float(self.cFrame.nTJDirhderStr.get())
> 
> v = np.array([event.xdata,event.ydata])
> s = [v]
> if jb: sj = [Jacob(v,hj,utils.dfridr)]
> if jnb: sjn = [Jacob(v,hjn,utils.dfridr)]
> for i in xrange(0,niter):
> u = pm.Map(v)
> s.append(u)
> v = u
> if jb: sj.append(Jacob(v,hj,utils.dfridr))
> if jnb: sjn.append(np.dot(sjn[-1],Jacob(v,hjn,utils.dfridr)))
> w = np.vstack(s)
> line = lines.Line2D(w[:,0],w[:,1],color='b')
> if jb:
> for i in xrange(len(sj)):
> J = sj[i]
> v = s[i]
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The point '+str(i+1)+' is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> else:
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-lj*u1,v+lj*u1])
> ul2 = np.vstack([v-lj*u2,v+lj*u2])
> line1 = lines.Line2D(ul1[:,0],ul1[:,1],color='b')
> line2 = lines.Line2D(ul2[:,0],ul2[:,1],color='r')
> self.aps.add_line(line1)
> self.aps.add_line(line2)
> if jnb:
> for i in xrange(len(sjn)):
> J = sjn[i]
> v = s[i]
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The traj '+str(i+1)+' is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> else:
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-ljn*u1,v+ljn*u1])
> ul2 = np.vstack([v-ljn*u2,v+ljn*u2])
> line1 = lines.Line2D(ul1[:,0],ul1[:,1],color='g')
> line2 = lines.Line2D(ul2[:,0],ul2[:,1],color='m')
> self.aps.add_line(line1)
> self.aps.add_line(line2)
> 
> elif Bhv == '1it':
> v = np.array([event.xdata,event.ydata])
> u = pm.Map(v)
> w = np.vstack([v,u])
> line = lines.Line2D(w[:,0],w[:,1],
> linestyle='None',
> marker='+',
> markersize=10.,
> color='k')
> elif Bhv == 'Preim':
> 
> xmin=float(self.cFrame.stDico['pixmin'].get())
> xmax=float(self.cFrame.stDico['pixmax'].get())
> pmin=float(self.cFrame.stDico['pipmin'].get())
> pmax=float(self.cFrame.stDico['pipmax'].get())
> nx=int(self.cFrame.stDico['pinx'].get())
> ny=int(self.cFrame.stDico['pinp'].get())
> tol=float(self.cFrame.stDico['pitol'].get())
> it=int(self.cFrame.stDico['piter'].get())
> al=float(self.cFrame.stDico['pialpha'].get())
> npim = self.cFrame.preimmVar.get()
> 
> v = np.array([event.xdata,event.ydata])
> u = preMap(npim,v,xmin,xmax,pmin,pmax,nx,ny,tol,it,al)
> if u != None:
> w = np.vstack([v,u])
> else:
> w = v
> w.shape = 1,2
> line = lines.Line2D(w[:,0],w[:,1],
> linestyle='None',
> marker='+',
> markersize=10.,
> color='k')
> elif Bhv == 'Jacob':
> l = float(self.cFrame.DirlStr.get())
> h = float(self.cFrame.DirhderStr.get())
> v = np.array([event.xdata,event.ydata])
> J = Jacob(v,h,utils.dfridr)
> (lr,vr) = eig(J,right=True)
> if reduce(lambda x,y : (np.abs(x)-1.)*(np.abs(y)-1.),lr) >= 0:
> print 'Problem : The point is not hyperbolic'
> print 'J=',J
> print 'l=',lr
> return
> if abs(lr[0]) < 1.:
> u1 = vr[:,0]
> u2 = vr[:,1]
> else:
> u1 = vr[:,1]
> u2 = vr[:,0]
> ul1 = np.vstack([v-l*u1,v+l*u1])
> ul2 = np.vstack([v-l*u2,v+l*u2])
> line = lines.Line2D(ul1[:,0],ul1[:,1],color='b')
> line1 = lines.Line2D(ul2[:,0],ul2[:,1],color='r')
> self.aps.add_line(line1)
> 
> 
> self.aps.add_line(line)
> # self.aps.set_title(self.tlps)
> # self.aps.set_xlabel(**self.xlps)
> # self.aps.set_ylabel(**self.ylps)
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> 
> def onpsrelease(self,event):
> self.press = False
> self.aps.clear()
> # self.aps.cla()
> for l in self.psLin:
> self.aps.add_line(l)
> self.aps.set_title(self.tlps)
> self.aps.set_xlabel(**self.xlps)
> self.aps.set_ylabel(**self.ylps)
> self.aps.redraw_in_frame()
> self.canvasps.blit()
> # end
> 
> I don't know if it is a bug or something else but thank you in advance if you can help me.
> 
> Jonathan
> 
> 
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Hi there,
I am trying to get an old project to run again (pbrain) but I am 
stopped by a few matplotlib.transforms dependencies:
from matplotlib.transforms import get_bbox_transform, Point, Value, 
Bbox,\
 unit_bbox, blend_xy_sep_transform
I was wondering if anyone knows what happened to the functions or how 
to replace them. It's possible get_bbox_transform is now 
BboxTransform, but I cannot guess the other names from:
 >>> import matplotlib.transforms as t
 >>> dir(t)
['Affine2D', 'Affine2DBase', 'AffineBase', 'Bbox', 'BboxBase', 
'BboxTransform', 'BboxTransformFrom', 'BboxTransformTo', 
'BlendedAffine2D', 'BlendedGenericTransform', 'CompositeAffine2D', 
'CompositeGenericTransform', 'DEBUG', 'IdentityTransform', 
'MaskedArray', 'Path', 'ScaledTranslation', 'Transform', 
'TransformNode', 'TransformWrapper', 'TransformedBbox', 
'TransformedPath', 'WeakKeyDictionary', '__builtins__', '__doc__', 
'__file__', '__name__', 'affine_transform', 
'blended_transform_factory', 'cbook', 'composite_transform_factory', 
'count_bboxes_overlapping_bbox', 'interval_contains', 
'interval_contains_open', 'inv', 'ma', 'nonsingular', 'np', 
'offset_copy', 'update_path_extents', 'warnings']
Christian

On Fri, Jul 10, 2009 at 10:15 AM, Michael Droettboom <md...@st...>wrote:
> Gökhan SEVER wrote:
>
>> Your suggested work-arounds worked like a charming. See my before and
>> after plots at the given links:
>>
>> http://img34.imageshack.us/img34/3899/dccnplot1.png
>> http://img27.imageshack.us/img27/6274/dccnplot2.png
>>
>> I have one tiny question left working on these figures; that is: how to
>> make mathtext font and a regular label font at the same size?
>>
>> For instance:
>>
>> host.set_ylabel(r"DMT CCN Concentration [ #/$cm^3$]")
>>
>> but as it is seen from the figure they look a bit weird.
>>
>> It will be impossible to get these two fonts appearing as the same size,
> but you can make the math rendering use the same font as the rest of the
> text by setting "mathtext.default" to "regular" (assuming "text.usetex" is
> False).
>
> Mike
>
> --
> Michael Droettboom
> Science Software Branch
> Operations and Engineering Division
> Space Telescope Science Institute
> Operated by AURA for NASA
>
>
Thanks Mike.
This was what I been looking for. Now the unit and the actual text label
looks much nicer.
Is this information available somewhere on the documentation? If not I may
add...
-- 
Gökhan

Gökhan SEVER wrote:
> Your suggested work-arounds worked like a charming. See my before and 
> after plots at the given links:
>
> http://img34.imageshack.us/img34/3899/dccnplot1.png
> http://img27.imageshack.us/img27/6274/dccnplot2.png
>
> I have one tiny question left working on these figures; that is: how 
> to make mathtext font and a regular label font at the same size?
>
> For instance:
>
> host.set_ylabel(r"DMT CCN Concentration [ #/$cm^3$]")
>
> but as it is seen from the figure they look a bit weird.
>
It will be impossible to get these two fonts appearing as the same size, 
but you can make the math rendering use the same font as the rest of the 
text by setting "mathtext.default" to "regular" (assuming "text.usetex" 
is False).
Mike
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

On Thu, Jul 9, 2009 at 11:08 PM, Jae-Joon Lee <lee...@gm...> wrote:
> On Thu, Jul 9, 2009 at 12:40 AM, Gökhan SEVER<gok...@gm...>
> wrote:
> > I have one tiny question left working on these figures; that is: how to
> make
> > mathtext font and a regular label font at the same size?
> >
> > For instance:
> >
> > host.set_ylabel(r"DMT CCN Concentration [ #/$cm^3$]")
> >
> > but as it is seen from the figure they look a bit weird.
>
> My guess is that this is the default behavior of tex rendering, but i
> may be wrong.
> If you want bigger mathtext, I think you need to use tex command, but
> again, i'm not sure and I hope someone else answer this.
>
> -JJ
>
I am studying the example given here:
http://www.scipy.org/Wiki/Cookbook/Matplotlib/UsingTex
and changing the related parameters in my matplotlibrc file. However still
couldn't find the right combination to make the texts and math symbols look
similar.
Any suggestion?
-- 
Gökhan

vehemental wrote:
> 
> Hi, I may be wrong, but arent these already examples of what you trying to
> show here?:
> 
> http://matplotlib.sourceforge.net/examples/pylab_examples/line_collection2.html
> http://matplotlib.sourceforge.net/examples/pylab_examples/ellipse_collection.html
> 
> if you use a collection you can quickly setup the colors of all your
> elements..by just passing an array....
> 
> jimmy
> 
> 
"same same, but different"...
I guess here one would have to assume you're only plotting lines? Or only
plotting ellipses, but say for example you had different types of plots you
would make, and just need a set of collections.. say you wanted to mix
scatter plots with line plots.
The point is, yes, you're correct, I think this basically does do what I'm
talking about, but having a way to create a 'generic' set of colors that can
be indexed I think is nice. There may be a more 'matplotlibish' way to do
it, I just didn't find it.
Seem ultimately there should be something like:
from matplotlib.colors import colorset
where colorset could just be defined with an integer as the number of
colors, and perhaps a cmap as an option... Maybe it's there?!?! I just
haven't found it.
My sudo code would be:
plotcolors = colorset(10,cmap=cm.jet)
for i in range(len(dataset)):
 x,y = dataset[i]
 plot(x,y, plotcolors[i])
... or something. **Note: I realize this isn't the best example, as
plot(X,Y) would do it automagically...
 
-- 
View this message in context: http://www.nabble.com/contribute-to-gallery--Or%2C-just-advice-on-changing-colors-automagically....-tp24419101p24427781.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

Hi, I may be wrong, but arent these already examples of what you trying to
show here?:
http://matplotlib.sourceforge.net/examples/pylab_examples/line_collection2.html
http://matplotlib.sourceforge.net/examples/pylab_examples/ellipse_collection.html
if you use a collection you can quickly setup the colors of all your
elements..by just passing an array....
jimmy
John [H2O] wrote:
> 
> Just curious if you're interested in folks contributing to the gallery. I
> was playing around trying to come up with a routine to automatically
> choose colors when plotting several datasets, not necessarily from a
> single array, but rather say iterating through a list of datasets. I came
> up with the following... maybe it's of interest? And certainly of
> interest to me... any advice on what could be done better!
> 
> Thanks!
> 
> 
> 
>> #!/usr/bin/env python
>> 
>> import numpy as np
>> import matplotlib.pyplot as plt
>> import matplotlib.cm as cm
>> import matplotlib.colors as colors
>> 
>> """A script to demonstrate automatically assigning colors based
>> on the number of x,y pairs to be plotted. """
>> 
>> # First example
>> # set up some example data
>> x = np.random.random((430,23))
>> 
>> # This is the important part for 'autocoloring'
>> # get an array of 0-1 values, length of numint (#data sets
>> # that you will iterate through), these will define the colors
>> numint = x.shape[1]
>> Nc = np.array([float(i)/numint for i in range(numint)])
>> norm = colors.normalize(Nc.min(),Nc.max())
>> 
>> fig = plt.figure()
>> ax = fig.add_subplot(111)
>> interval = 0
>> for i in range(numint):
>> #get a new color
>> cmap = cm.jet(norm(Nc[i]))
>> ax.scatter(x[:,0],x[:,i],color=cmap)
>> 
>> 
>> # Second example
>> # something a little more interesting
>> fig2 = plt.figure()
>> ax2 = fig2.add_subplot(111)
>> X = np.arange(400)
>> y = np.sin(X)
>> y2 = X*.2
>> x = np.column_stack((y,y2))
>> 
>> #define an interval, the dataset is divided by this value
>> intervalsize = 23
>> numint = int(np.round(x.shape[0]/intervalsize)) + 1
>> 
>> # This is the important part for 'autocoloring'
>> # get an array of 0-1 values, length of numint
>> # these will define the colors
>> Nc = np.array([float(i)/numint for i in range(numint)])
>> norm = colors.normalize(Nc.min(),Nc.max())
>> 
>> interval = 0
>> for i in range(0,len(x),intervalsize):
>> # define the index array (easier than typing)
>> indx = np.arange(i,i+intervalsize)
>> #get a new color
>> cmap = cm.jet(norm(Nc[interval]))
>> # the indx as defined above may exceed
>> # the data array
>> try:
>> ax2.scatter(x[indx,0],x[indx,1],color=cmap)
>> #print indx
>> # case to handle tail of data
>> except:
>> #plt.scatter(x[i:,0],x[i:,1],color=cmap)
>> print 'OOPS, index exceeds dimensions:',indx
>> pass
>> # so that you don't miss the last interval
>> if len(x)-i < intervalsize:
>> ax2.scatter(x[i+1:,0],x[i+1:,1],color=cmap)
>> print 'last bits...'
>> interval+=1
>> 
>> plt.show()
>> 
> 
-- 
View this message in context: http://www.nabble.com/contribute-to-gallery--Or%2C-just-advice-on-changing-colors-automagically....-tp24419101p24427289.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

On Fri, Jul 10, 2009 at 11:45 AM, Michiel de Hoon<mjl...@ya...> wrote:
>
> It's probably the -L/usr/X11R6/lib that is causing a problem. Can you try linking without it?
>
Yes, that's it... running the command by hand without that stops the error:
robin-mbp-3:matplotlib robince$ g++ -arch i386 -isysroot
/Developer/SDKs/MacOSX10.4u.sdk -g -bundle -undefined dynamic_lookup
build/temp.macosx-10.3-i386-2.5/src/_macosx.o
build/temp.macosx-10.3-i386-2.5/CXX/cxx_extensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxextensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxsupport.o
build/temp.macosx-10.3-i386-2.5/CXX/IndirectPythonInterface.o
build/temp.macosx-10.3-i386-2.5/src/agg_py_transforms.o
build/temp.macosx-10.3-i386-2.5/src/path_cleanup.o -L/usr/local/lib
-L/usr/lib -L/usr/X11R6/lib -lstdc++ -lm -o
build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
-framework Cocoa
ld: cycle in dylib re-exports with
/Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/lib/libGL.dylib
collect2: ld returned 1 exit status
robin-mbp-3:matplotlib robince$ g++ -arch i386 -isysroot
/Developer/SDKs/MacOSX10.4u.sdk -g -bundle -undefined dynamic_lookup
build/temp.macosx-10.3-i386-2.5/src/_macosx.o
build/temp.macosx-10.3-i386-2.5/CXX/cxx_extensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxextensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxsupport.o
build/temp.macosx-10.3-i386-2.5/CXX/IndirectPythonInterface.o
build/temp.macosx-10.3-i386-2.5/src/agg_py_transforms.o
build/temp.macosx-10.3-i386-2.5/src/path_cleanup.o -L/usr/local/lib
-L/usr/lib -lstdc++ -lm -o
build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
-framework Cocoa
robin-mbp-3:matplotlib robince$
Cheers
Robin
> --Michiel.
>
> --- On Fri, 7/10/09, Robin <ro...@gm...> wrote:
>
>> From: Robin <ro...@gm...>
>> Subject: Re: [Matplotlib-users] current svn fails to build on mac
>> To: "Michiel de Hoon" <mjl...@ya...>
>> Cc: mat...@li...
>> Date: Friday, July 10, 2009, 4:03 AM
>> On Fri, Jul 10, 2009 at 1:33 AM,
>> Michiel de Hoon<mjl...@ya...>
>> wrote:
>> > Can you verify that matplotlib 0.98.5.3 still compiles
>> correctly?
>> > If it does, we can compare the linker flags used for
>> 0.98.5.3 and the svn version to find the problem.
>>
>> Yes - just removed build dirs and did both from scratch.
>> 0.98.5.3 - fine, full build log:
>> http://www.robince.net/robince/mpl/build-0.98.5.3.log
>> svn7250 - fails, full build log:
>> http://www.robince.net/robince/mpl/build-svn7250.log
>>
>> The relevant sections of the logs (I think) are:
>>
>> Release
>> -----------
>> building 'matplotlib.backends._macosx' extension
>>
>> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
>> -fno-strict-aliasing -Wno-long-double -no-cpp-precomp
>> -mno-fused-madd
>> -fno-common -dynamic -DNDEBUG -g -O3
>> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
>> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
>> -c src/_macosx.m -o
>> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
>>
>> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g
>> -bundle
>> -undefined dynamic_lookup
>> build/temp.macosx-10.3-i386-2.5/src/_macosx.o -o
>> build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
>> -framework Cocoa
>>
>> SVN
>> ------
>> building 'matplotlib.backends._macosx' extension
>>
>> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
>> -fno-strict-aliasing -Wno-long-double -no-cpp-precomp
>> -mno-fused-madd
>> -fno-common -dynamic -DNDEBUG -g -O3
>> -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API
>> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
>> -I/usr/local/include -I/usr/include -I/usr/X11R6/include
>> -I.
>> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
>> -Isrc -Iagg24/include -I.
>> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
>> -c src/_macosx.m -o
>> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
>>
>> g++ -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g
>> -bundle
>> -undefined dynamic_lookup
>> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
>> build/temp.macosx-10.3-i386-2.5/CXX/cxx_extensions.o
>> build/temp.macosx-10.3-i386-2.5/CXX/cxxextensions.o
>> build/temp.macosx-10.3-i386-2.5/CXX/cxxsupport.o
>> build/temp.macosx-10.3-i386-2.5/CXX/IndirectPythonInterface.o
>> build/temp.macosx-10.3-i386-2.5/src/agg_py_transforms.o
>> build/temp.macosx-10.3-i386-2.5/src/path_cleanup.o
>> -L/usr/local/lib
>> -L/usr/lib -L/usr/X11R6/lib -lstdc++ -lm -o
>> build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
>> -framework Cocoa
>>
>> ld: cycle in dylib re-exports with
>> /Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/lib/libGL.dylib
>> collect2: ld returned 1 exit status
>> error: command 'g++' failed with exit status 1
>>
>>
>> Obviously lots of differences but I've no idea what would
>> be causing it.
>>
>> Cheers
>>
>> Robin
>>
>
>
>
>

Hello,
are there some relative/absolute limits in the plotting area?
I would like to set some text (labels) in the plot automatically, so
that I do not need to recalculate everytime where they should go.
I mean some kind of absolute X0, Y0, X1, Y1 , so that I know where to
place the labels in text in the plot area without having to look at
the particular values of the particular plot I am dealing with, in a
series of very similar plots.
Thanks,
Pau

It's probably the -L/usr/X11R6/lib that is causing a problem. Can you try linking without it?
--Michiel.
--- On Fri, 7/10/09, Robin <ro...@gm...> wrote:
> From: Robin <ro...@gm...>
> Subject: Re: [Matplotlib-users] current svn fails to build on mac
> To: "Michiel de Hoon" <mjl...@ya...>
> Cc: mat...@li...
> Date: Friday, July 10, 2009, 4:03 AM
> On Fri, Jul 10, 2009 at 1:33 AM,
> Michiel de Hoon<mjl...@ya...>
> wrote:
> > Can you verify that matplotlib 0.98.5.3 still compiles
> correctly?
> > If it does, we can compare the linker flags used for
> 0.98.5.3 and the svn version to find the problem.
> 
> Yes - just removed build dirs and did both from scratch.
> 0.98.5.3 - fine, full build log:
> http://www.robince.net/robince/mpl/build-0.98.5.3.log
> svn7250 - fails, full build log:
> http://www.robince.net/robince/mpl/build-svn7250.log
> 
> The relevant sections of the logs (I think) are:
> 
> Release
> -----------
> building 'matplotlib.backends._macosx' extension
> 
> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
> -fno-strict-aliasing -Wno-long-double -no-cpp-precomp
> -mno-fused-madd
> -fno-common -dynamic -DNDEBUG -g -O3
> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
> -c src/_macosx.m -o
> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
> 
> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g
> -bundle
> -undefined dynamic_lookup
> build/temp.macosx-10.3-i386-2.5/src/_macosx.o -o
> build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
> -framework Cocoa
> 
> SVN
> ------
> building 'matplotlib.backends._macosx' extension
> 
> gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
> -fno-strict-aliasing -Wno-long-double -no-cpp-precomp
> -mno-fused-madd
> -fno-common -dynamic -DNDEBUG -g -O3
> -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API
> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
> -I/usr/local/include -I/usr/include -I/usr/X11R6/include
> -I.
> -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
> -Isrc -Iagg24/include -I.
> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
> -c src/_macosx.m -o
> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
> 
> g++ -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g
> -bundle
> -undefined dynamic_lookup
> build/temp.macosx-10.3-i386-2.5/src/_macosx.o
> build/temp.macosx-10.3-i386-2.5/CXX/cxx_extensions.o
> build/temp.macosx-10.3-i386-2.5/CXX/cxxextensions.o
> build/temp.macosx-10.3-i386-2.5/CXX/cxxsupport.o
> build/temp.macosx-10.3-i386-2.5/CXX/IndirectPythonInterface.o
> build/temp.macosx-10.3-i386-2.5/src/agg_py_transforms.o
> build/temp.macosx-10.3-i386-2.5/src/path_cleanup.o
> -L/usr/local/lib
> -L/usr/lib -L/usr/X11R6/lib -lstdc++ -lm -o
> build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
> -framework Cocoa
> 
> ld: cycle in dylib re-exports with
> /Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/lib/libGL.dylib
> collect2: ld returned 1 exit status
> error: command 'g++' failed with exit status 1
> 
> 
> Obviously lots of differences but I've no idea what would
> be causing it.
> 
> Cheers
> 
> Robin
> 
 

On Fri, Jul 10, 2009 at 1:33 AM, Michiel de Hoon<mjl...@ya...> wrote:
> Can you verify that matplotlib 0.98.5.3 still compiles correctly?
> If it does, we can compare the linker flags used for 0.98.5.3 and the svn version to find the problem.
Yes - just removed build dirs and did both from scratch.
0.98.5.3 - fine, full build log:
http://www.robince.net/robince/mpl/build-0.98.5.3.log
svn7250 - fails, full build log:
http://www.robince.net/robince/mpl/build-svn7250.log
The relevant sections of the logs (I think) are:
Release
-----------
building 'matplotlib.backends._macosx' extension
gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
-fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd
-fno-common -dynamic -DNDEBUG -g -O3
-I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
-I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
-c src/_macosx.m -o build/temp.macosx-10.3-i386-2.5/src/_macosx.o
gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -bundle
-undefined dynamic_lookup
build/temp.macosx-10.3-i386-2.5/src/_macosx.o -o
build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
-framework Cocoa
SVN
------
building 'matplotlib.backends._macosx' extension
gcc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
-fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd
-fno-common -dynamic -DNDEBUG -g -O3
-DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API
-I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
-I/usr/local/include -I/usr/include -I/usr/X11R6/include -I.
-I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/core/include
-Isrc -Iagg24/include -I.
-I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
-c src/_macosx.m -o build/temp.macosx-10.3-i386-2.5/src/_macosx.o
g++ -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -bundle
-undefined dynamic_lookup
build/temp.macosx-10.3-i386-2.5/src/_macosx.o
build/temp.macosx-10.3-i386-2.5/CXX/cxx_extensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxextensions.o
build/temp.macosx-10.3-i386-2.5/CXX/cxxsupport.o
build/temp.macosx-10.3-i386-2.5/CXX/IndirectPythonInterface.o
build/temp.macosx-10.3-i386-2.5/src/agg_py_transforms.o
build/temp.macosx-10.3-i386-2.5/src/path_cleanup.o -L/usr/local/lib
-L/usr/lib -L/usr/X11R6/lib -lstdc++ -lm -o
build/lib.macosx-10.3-i386-2.5/matplotlib/backends/_macosx.so
-framework Cocoa
ld: cycle in dylib re-exports with
/Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/lib/libGL.dylib
collect2: ld returned 1 exit status
error: command 'g++' failed with exit status 1
Obviously lots of differences but I've no idea what would be causing it.
Cheers
Robin

On Thu, Jul 9, 2009 at 7:24 AM, Robin<ro...@gm...> wrote:
>> On Wed, Jul 8, 2009 at 10:57 PM, Jae-Joon Lee<lee...@gm...> wrote:
>>> If you use the svn version of matplotlib, you may use axes_grid toolkit.
>>>
>>> http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/users/overview.html#insetlocator
>
> Wow - this is really amazing. Sometimes it can be a bit frustrating
> when I'm working to a deadline to figure out the details of Bbox's and
> such but when I find something like this it really makes it worth
> while! It does exactly what I want, really easy to use and only took
> about 5 lines! (It would be nice if there were some docstrings in
> there though :))
>
> On Thu, Jul 9, 2009 at 4:02 AM, Jae-Joon Lee<lee...@gm...> wrote:
>> However, It is possible to specify the location of the axes in
>> normalized axes coordinate.
>>
>> http://thread.gmane.org/gmane.comp.python.matplotlib.general/16373
>
> I'm afraid I didn't really understand how to apply this in my case...
> I guess I would have to set the position and everything by hand
> instead of using the zoom helper. I preferred to use the zoom helper,
> but found the legend loc settings put it slightly too close to the
> edge of the surrounding axes for my taste.
>
> So after checking the docstrings for how to position legends I came up
> with something that works, but it required a minor change to the
> inset_locator.py to pass the bbox_to_anchor and bbox_transform (it
> looks like this was intended since they have None default values):
>
> robin-mbp-3:~ robince$ diff
> /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/mpl_toolkits/axes_grid/inset_locator.py
> code/scipy_build/matplotlib/lib/mpl_toolkits/axes_grid/inset_locator.py
> 288c288
> <  axes_locator = AnchoredZoomLocator(parent_axes, zoom=zoom,
> loc=loc, bbox_to_anchor=bbox_to_anchor,bbox_transform=bbox_transform)
> ---
>>  axes_locator = AnchoredZoomLocator(parent_axes, zoom=zoom, loc=loc)
>
> With this minor change I get exactly what I want!
>
Thanks for the catch. I'll commit the change to the svn soon.
By the way, borderpad keyword is meant to do what you want. However, I
just found that it does not work sine the option is not properly
handled. I'll fix this in the next commit.
Regards,
-JJ
>  ax1ins = zoomed_inset_axes(ax1, 3,
> bbox_to_anchor=(0.1,0,1,1),bbox_transform=ax1.transAxes, loc=6)
>  plot_trial_dists(res515[0],8,ax=ax1ins)
>  ax1ins.set_xlim([5, 50])
>  ax1ins.set_ylim([0, 0.04])
>  ax1ins.set_xticks([])
>  ax1ins.set_yticks([])
>  mark_inset(ax1, ax1ins, loc1=2, loc2=4, fc="none", ec="0.5")
>
> thanks again, this is really terrific!
>
> Cheers
>
> Robin
>

On Thu, Jul 9, 2009 at 12:40 AM, Gökhan SEVER<gok...@gm...> wrote:
> I have one tiny question left working on these figures; that is: how to make
> mathtext font and a regular label font at the same size?
>
> For instance:
>
> host.set_ylabel(r"DMT CCN Concentration [ #/$cm^3$]")
>
> but as it is seen from the figure they look a bit weird.
My guess is that this is the default behavior of tex rendering, but i
may be wrong.
If you want bigger mathtext, I think you need to use tex command, but
again, i'm not sure and I hope someone else answer this.
-JJ

That worked. I was able to install
matplotlib-0.98.5.3-py2.5-macosx10.5.zip<http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.98.5.3-py2.5-macosx10.5.zip/download>
.
Thanks.
On Thu, Jul 9, 2009 at 3:51 PM, Robin <ro...@gm...> wrote:
> On Thu, Jul 9, 2009 at 10:13 PM, W.P. McNeill<bi...@gm...> wrote:
> > This is matplotlib-0.91.4. I get the same error whether I install via
> > the egg or download the zipped tar ball and run "python setup.py
> > build".
>
> That's quite an old version. Could you try with a more recent release?
> 0.98.5.3 is the latest release and it builds for me on OS X 10.5.7
> without problems. (You need to close the matplotlib-maintenance tree
> on sourceforge and look for files in 'matplotlib' branch instead)
>
> Cheers
>
> Robin
>
-- 
W.P. McNeill
http://staff.washington.edu/billmcn/index.shtml

> I should have specified I'm on OS X 10.5.7. Xcode 3.0.
I'm using the same, but I'm not seeing this error.
Can you verify that matplotlib 0.98.5.3 still compiles correctly?
If it does, we can compare the linker flags used for 0.98.5.3 and the svn version to find the problem.
--Michiel.
--- On Thu, 7/9/09, Robin <ro...@gm...> wrote:
> From: Robin <ro...@gm...>
> Subject: Re: [Matplotlib-users] current svn fails to build on mac
> To: mat...@li...
> Date: Thursday, July 9, 2009, 7:16 AM
> On Thu, Jul 9, 2009 at 12:15 PM,
> Robin<ro...@gm...>
> wrote:
> > On Thu, Jul 9, 2009 at 12:06 PM, Michiel de Hoon<mjl...@ya...>
> wrote:
> >>
> >> One thing that changed between 0.98.5.3 and the
> current SVN version is that we're now using matplotlib's
> path cleanup code, which is in C++. Maybe the linker is
> picking up different libraries with C++? Though I haven't
> seen this error on Mac OS X 10.4 or 10.5.
> >>
> >
> > I should have specified I'm on OS X 10.5.7. Xcode
> 3.0.
> >
> 
> As do many others I consistently forget to reply to all on
> this list.
> This is the only list I follow that doesn't set the
> reply-to to go to
> the list!
> 
> Cheers
> 
> Robin
> 
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