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>>>>> "Tony" == Tony Mannucci <Ton...@jp...> writes:
 Tony> Let me know if this is not the appropriate way to report
 Tony> bugs. Here is the example code:
This is a good way to report them, but none of these are bugs :-)
 Tony> import numpy as N import matplotlib matplotlib.use("TkAgg")
 Tony> import pylab as PLT
 Tony> x = N.array([1.,2.,3.,4.,5.]) y =
 Tony> N.array([2.2,3.3,4.4,5.5,6.6]) PLT.figure(1) PLT.clf()
 Tony> PLT.hold(False) PLT.plot(x,y,'+',color='k',linestyle='--')
 Tony> ***Symbol is blue (wrong), line is dashed and black (right)
A single line object can have a linestyle and a marker and their
colors are independent. The "color" kwarg applies to the linestyle.
The markerfacecolor and markeredgecolor kwargs control the marker
color.
 Tony> PLT.plot(x,y,'+',color=[0,0,0],linestyle='--')
 Tony> ***Same error as above
Same explanation.
 Tony> PLT.plot(x,y,'+r',linestyle='--')
 Tony> ***Works correctly (symbol and line are red)
The format color string applies to the marker or line -- this is
different than the kwargs.
 Tony> PLT.axis([0.0,6.0,0.0,7.0]) PLT.xlabel('X
 Tony> Label',fontsize=18) PLT.ylabel('Y label',fontsize=18)
 Tony> PLT.title('TITLE',fontsize=24) PLT.hold(True)
 Tony> PLT.plot(x+0.1,y-0.2,'+r')
 Tony> ***ERROR: resets axis limits (is this an error? Note hold is
 Tony> on)
"hold" controls whether multiple lines are plotted on the same axes or
whether the axes is cleared with successive plots. To disable
autoscaling, use 
 ax.set_autoscale_on(False)
 Tony> PLT.axis([0.0,6.0,0.0,7.0])
 Tony> ***Restores manual axes limits
As it should.
Thanks,
JDH

Let me know if this is not the appropriate way to report bugs.
Here is the example code:
import numpy as N
import matplotlib
matplotlib.use("TkAgg")
import pylab as PLT
x = N.array([1.,2.,3.,4.,5.])
y = N.array([2.2,3.3,4.4,5.5,6.6])
PLT.figure(1)
PLT.clf()
PLT.hold(False)
PLT.plot(x,y,'+',color='k',linestyle='--')
***Symbol is blue (wrong), line is dashed and black (right)
PLT.plot(x,y,'+',color=[0,0,0],linestyle='--')
***Same error as above
PLT.plot(x,y,'+r',linestyle='--')
***Works correctly (symbol and line are red)
PLT.axis([0.0,6.0,0.0,7.0])
PLT.xlabel('X Label',fontsize=18)
PLT.ylabel('Y label',fontsize=18)
PLT.title('TITLE',fontsize=24)
PLT.hold(True)
PLT.plot(x+0.1,y-0.2,'+r')
***ERROR: resets axis limits (is this an error? Note hold is on)
PLT.axis([0.0,6.0,0.0,7.0])
***Restores manual axes limits
>>> matplotlib.__version__
'0.87.2'
>>> N.__version__
'0.9.6'
-Tony
-- 
Tony Mannucci
Supervisor, Ionospheric and Atmospheric Remote Sensing Group
 Mail-Stop 138-308, Tel > (818) 354-1699
 Jet Propulsion Laboratory, Fax > (818) 393-5115
 California Institute of Technology, Email > Ton...@jp...
 4800 Oak Grove Drive, http://genesis.jpl.nasa.gov
 Pasadena, CA 91109