matplotlib-users Mailing List for matplotlib

Hello,

I just started looking into python and matplotlib a few days ago and I am a=
mazed that this software can do more or less the same as MATLAB. I just hav=
e a couple of questions regarding some stuff that I spent a lot of time wit=
hout figuring out.

1. Is there a way to change the font type and font size of the numbers on t=
he axes in a figure? Not the labels (xlabel and ylabel - they are easy to c=
hange), but the actual numbers. If for example x goes from 0 to 6 in step o=
f 2, the numbers showing below the x axis would be 0, 2, 4, and 6 for examp=
le. It is the fontsize and font of these numbers that I want to change. It =
must be some axis property but I cannot figure it out.

2. I will be using the figures plotted in matplotlib mainly to import them =
in LATEX documents. Since Latex uses Computer modern font by default, is th=
ere a way to change the default font in matplotlib to match it? What would =
be the actual command?

3. The data that I would like to plot is in an ASCII format, where the firs=
t row and column is text and the rest is numbers. What would be the best wa=
y to import that into maplotlib and then assign a variable name to each col=
umn (without the first entry, which would be the variable name).

Thanks a lot in advance.
_________________________________________________________________
=C1=D4=DE=D1=D8=D9 =E1=D5 =E1=EA=E1 =E1=DB=D5=D4=D2=D0=E9=D0=E2=D0 =D3=D5=
=DD=D5=E0=D0=E6=D8=EF  Windows Live =E3=E1=DB=E3=D3=D8 =E1=D5=D3=D0!
http://get.live.com=

On Tuesday 18 December 2007 10:55:36 am Peter-Jan Randewijk wrote:
> Darren,
>
> Thanks for the quick reply...  It works like a charm...  Somehow I
> missed the post in the userslist...

You're off the hook :) It was posted at the sourceforge bugtracker, not on the 
mailing list.

> Op 2007/12/18 17:25, het Darren Dale die volgende geskryf:
> > Somebody reported it right after 0.91.1 was released. It has been fixed
> > in svn. To hold you over until the next release, I think you just need to
> > update your matplotlib/__init__.py and matplotlib/rcsetup.py.
> >
> > On Tuesday 18 December 2007 10:07:28 am Peter-Jan Randewijk wrote:
> >> Dear Darren,
> >>
> >> I know "text.latex.preamble" is not supported, but since I upgraded to
> >> Matplotlib 0.91.1 my latex preamble code which was working perfectly
> >> well in 0.90.1, now gives my the follow errors (both on openSUSE & XP):
> >>
> >> In [1]: run overlap_vs_concentrated.py
> >> C:\Python\lib\site-packages\matplotlib\__init__.py:606: UserWarning: Bad
> >> val "\u
> >> sepackage[cmex10]{amsmath},\usepackage{helvet},\usepackage{sansserifmath
> >>}" on li
> >> ne #128
> >>         "text.latex.preamble       :
> >> \usepackage[cmex10]{amsmath},\usepackage{he
> >> lvet},\usepackage{sansserifmath}
> >> "
> >>         in file "c:\My Documents\My
> >> Publications\PEDS-2007\Paper_I\Presentation\
> >> python\matplotlibrc"
> >>         global name 'verbose' is not defined
> >>   "%s"\n\t%s' % (val, cnt, line, fname, msg))
> >>
> >> Has the syntax changed... or is this a bug...?
> >>
> >> I also get this error message w.r.t. to "verbose" which isn't critical
> >> but annoying...
> >>
> >> Kind regards,
> >>
> >> Peter-Jan
> >>
> >> Op 2007/05/18 18:05, het Alexander Schmolck die volgende geskryf:
> >>> Darren Dale <dd...@co...> writes:
> >>>>> Well, if ever there was a compelling use-case for an
> >>>>> undocumented/unsupported feature it would be this one, I think.
> >>>>
> >>>> Alright, svn 3277 lets you add additional commands to the preamble:
> >>>>
> >>>> text.latex.preamble : \usepackage{bm},\renewcommand{etc...}
> >>>>
> >>>> See the default matplotlibrc file for more information.
> >>>>
> >>>> THIS FEATURE IS NOT SUPPORTED. Please don't report problems on the mpl
> >>>> mailing lists without submitting a patch to fix them.
> >>>>
> >>>> Alex, please give this a spin. Tell me if it meets your needs, and if
> >>>> it doesnt, send a patch.
> >>>
> >>> Great! Thanks for incorporating this! It fits my needs, but I sent a
> >>> (mostly unreleated) patch anyway (against 3278) :)
> >>>
> >>> cheers,
> >>>
> >>> 'as
> >>>
> >>> -----------------------------------------------------------------------
> >>>-- This SF.net email is sponsored by DB2 Express
> >>> Download DB2 Express C - the FREE version of DB2 express and take
> >>> control of your XML. No limits. Just data. Click to get it now.
> >>> http://sourceforge.net/powerbar/db2/
> >>> _______________________________________________
> >>> Matplotlib-users mailing list
> >>> Mat...@li...
> >>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users



-- 
Darren S. Dale, Ph.D.
Staff Scientist
Cornell High Energy Synchrotron Source
Cornell University
275 Wilson Lab
Rt. 366 & Pine Tree Road
Ithaca, NY 14853

dar...@co...
office: (607) 255-3819
fax: (607) 255-9001
http://www.chess.cornell.edu

Darren,

Thanks for the quick reply...  It works like a charm...  Somehow I 
missed the post in the userslist...

Kind regards,

Peter-Jan

Op 2007/12/18 17:25, het Darren Dale die volgende geskryf:
> Somebody reported it right after 0.91.1 was released. It has been fixed in 
> svn. To hold you over until the next release, I think you just need to update 
> your matplotlib/__init__.py and matplotlib/rcsetup.py.
>
> On Tuesday 18 December 2007 10:07:28 am Peter-Jan Randewijk wrote:
>   
>> Dear Darren,
>>
>> I know "text.latex.preamble" is not supported, but since I upgraded to
>> Matplotlib 0.91.1 my latex preamble code which was working perfectly
>> well in 0.90.1, now gives my the follow errors (both on openSUSE & XP):
>>
>> In [1]: run overlap_vs_concentrated.py
>> C:\Python\lib\site-packages\matplotlib\__init__.py:606: UserWarning: Bad
>> val "\u
>> sepackage[cmex10]{amsmath},\usepackage{helvet},\usepackage{sansserifmath}"
>> on li
>> ne #128
>>         "text.latex.preamble       :
>> \usepackage[cmex10]{amsmath},\usepackage{he
>> lvet},\usepackage{sansserifmath}
>> "
>>         in file "c:\My Documents\My
>> Publications\PEDS-2007\Paper_I\Presentation\
>> python\matplotlibrc"
>>         global name 'verbose' is not defined
>>   "%s"\n\t%s' % (val, cnt, line, fname, msg))
>>
>> Has the syntax changed... or is this a bug...?
>>
>> I also get this error message w.r.t. to "verbose" which isn't critical
>> but annoying...
>>
>> Kind regards,
>>
>> Peter-Jan
>>
>> Op 2007/05/18 18:05, het Alexander Schmolck die volgende geskryf:
>>     
>>> Darren Dale <dd...@co...> writes:
>>>       
>>>>> Well, if ever there was a compelling use-case for an
>>>>> undocumented/unsupported feature it would be this one, I think.
>>>>>           
>>>> Alright, svn 3277 lets you add additional commands to the preamble:
>>>>
>>>> text.latex.preamble : \usepackage{bm},\renewcommand{etc...}
>>>>
>>>> See the default matplotlibrc file for more information.
>>>>
>>>> THIS FEATURE IS NOT SUPPORTED. Please don't report problems on the mpl
>>>> mailing lists without submitting a patch to fix them.
>>>>
>>>> Alex, please give this a spin. Tell me if it meets your needs, and if it
>>>> doesnt, send a patch.
>>>>         
>>> Great! Thanks for incorporating this! It fits my needs, but I sent a
>>> (mostly unreleated) patch anyway (against 3278) :)
>>>
>>> cheers,
>>>
>>> 'as
>>>
>>> -------------------------------------------------------------------------
>>> This SF.net email is sponsored by DB2 Express
>>> Download DB2 Express C - the FREE version of DB2 express and take
>>> control of your XML. No limits. Just data. Click to get it now.
>>> http://sourceforge.net/powerbar/db2/
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Mat...@li...
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>       

Somebody reported it right after 0.91.1 was released. It has been fixed in 
svn. To hold you over until the next release, I think you just need to update 
your matplotlib/__init__.py and matplotlib/rcsetup.py.

On Tuesday 18 December 2007 10:07:28 am Peter-Jan Randewijk wrote:
> Dear Darren,
>
> I know "text.latex.preamble" is not supported, but since I upgraded to
> Matplotlib 0.91.1 my latex preamble code which was working perfectly
> well in 0.90.1, now gives my the follow errors (both on openSUSE & XP):
>
> In [1]: run overlap_vs_concentrated.py
> C:\Python\lib\site-packages\matplotlib\__init__.py:606: UserWarning: Bad
> val "\u
> sepackage[cmex10]{amsmath},\usepackage{helvet},\usepackage{sansserifmath}"
> on li
> ne #128
>         "text.latex.preamble       :
> \usepackage[cmex10]{amsmath},\usepackage{he
> lvet},\usepackage{sansserifmath}
> "
>         in file "c:\My Documents\My
> Publications\PEDS-2007\Paper_I\Presentation\
> python\matplotlibrc"
>         global name 'verbose' is not defined
>   "%s"\n\t%s' % (val, cnt, line, fname, msg))
>
> Has the syntax changed... or is this a bug...?
>
> I also get this error message w.r.t. to "verbose" which isn't critical
> but annoying...
>
> Kind regards,
>
> Peter-Jan
>
> Op 2007/05/18 18:05, het Alexander Schmolck die volgende geskryf:
> > Darren Dale <dd...@co...> writes:
> >>> Well, if ever there was a compelling use-case for an
> >>> undocumented/unsupported feature it would be this one, I think.
> >>
> >> Alright, svn 3277 lets you add additional commands to the preamble:
> >>
> >> text.latex.preamble : \usepackage{bm},\renewcommand{etc...}
> >>
> >> See the default matplotlibrc file for more information.
> >>
> >> THIS FEATURE IS NOT SUPPORTED. Please don't report problems on the mpl
> >> mailing lists without submitting a patch to fix them.
> >>
> >> Alex, please give this a spin. Tell me if it meets your needs, and if it
> >> doesnt, send a patch.
> >
> > Great! Thanks for incorporating this! It fits my needs, but I sent a
> > (mostly unreleated) patch anyway (against 3278) :)
> >
> > cheers,
> >
> > 'as
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2 express and take
> > control of your XML. No limits. Just data. Click to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users



-- 
Darren S. Dale, Ph.D.
Staff Scientist
Cornell High Energy Synchrotron Source
Cornell University
275 Wilson Lab
Rt. 366 & Pine Tree Road
Ithaca, NY 14853

dar...@co...
office: (607) 255-3819
fax: (607) 255-9001
http://www.chess.cornell.edu

Dear Darren,

I know "text.latex.preamble" is not supported, but since I upgraded to 
Matplotlib 0.91.1 my latex preamble code which was working perfectly 
well in 0.90.1, now gives my the follow errors (both on openSUSE & XP):

In [1]: run overlap_vs_concentrated.py
C:\Python\lib\site-packages\matplotlib\__init__.py:606: UserWarning: Bad 
val "\u
sepackage[cmex10]{amsmath},\usepackage{helvet},\usepackage{sansserifmath}" 
on li
ne #128
        "text.latex.preamble       : 
\usepackage[cmex10]{amsmath},\usepackage{he
lvet},\usepackage{sansserifmath}
"
        in file "c:\My Documents\My 
Publications\PEDS-2007\Paper_I\Presentation\
python\matplotlibrc"
        global name 'verbose' is not defined
  "%s"\n\t%s' % (val, cnt, line, fname, msg))

Has the syntax changed... or is this a bug...?

I also get this error message w.r.t. to "verbose" which isn't critical 
but annoying...

Kind regards,

Peter-Jan

Op 2007/05/18 18:05, het Alexander Schmolck die volgende geskryf:
> Darren Dale <dd...@co...> writes:
>
>   
>>> Well, if ever there was a compelling use-case for an
>>> undocumented/unsupported feature it would be this one, I think.
>>>       
>> Alright, svn 3277 lets you add additional commands to the preamble:
>>
>> text.latex.preamble : \usepackage{bm},\renewcommand{etc...}
>>
>> See the default matplotlibrc file for more information.
>>
>> THIS FEATURE IS NOT SUPPORTED. Please don't report problems on the mpl mailing 
>> lists without submitting a patch to fix them. 
>>
>> Alex, please give this a spin. Tell me if it meets your needs, and if it 
>> doesnt, send a patch.
>>     
>
> Great! Thanks for incorporating this! It fits my needs, but I sent a (mostly
> unreleated) patch anyway (against 3278) :)
>
> cheers,
>
> 'as
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>   

Yes, I think strpdate2num is based on dateutil.parser.parse thast's why I
tried dayfirst=3DTrue which is used with dateutil.parser.parse.


It would be funny if from a list of string, it could be automatically try t=
o
decide between day/month/year, month/day/year format... (it=B4s a joke)

Hi Emmanuel,
look at dateutil.parser.parse, there is exactly what you search.

Le mardi 18 d=C3=A9cembre 2007, Emmanuel a =C3=A9crit=C2=A0:
> Ok, thank you!
>
> I'm missing an option to (easily) use date that start with the day
> day/month/year (it is the case in Brazil and France for example)
>
> I'm using something like tha
> date_Ymd=3D"%s/%s/%s" % (datedayfirst.split('/')[2],datedayfirst.split
> ('/')[1],datedayfirst.split ('/')[0])
>
> I was lookigng for sometinh like that :
>
> datestr2num(a,dayfirst=3DTrue)
> or
> datestr2num(a,fmt=3D"%d/%m/%Y")
>
> On Dec 11, 2007 11:16 AM, John Hunter <jd...@gm...> wrote:
> > On Dec 11, 2007 6:00 AM, Emmanuel <emm...@fa...> wrote:
> > > Hi,
> > >
> > > I've a little problem with date conversion. I have a csv file which
> >
> > looks
> >
> > > like :
> > > "Data","Valor"
> > > "15/01/2007"," 6,700012000"
> > > "12/01/2007"," 6,659903000"
> > >
> > > "11/01/2007"," 6,701586000"
> > >
> > > I try to get date using function strpdate2num in load doing this :
> >
> > Try stripping the double quote characters from you file.
> >
> > JDH
> >
> > -----------------------------------------------------------------------=
=2D-
> > SF.Net email is sponsored by:
> > Check out the new SourceForge.net Marketplace.
> > It's the best place to buy or sell services for
> > just about anything Open Source.
> > http://sourceforge.net/services/buy/index.php
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users



=2D-=20
Lionel Roubeyrie - lro...@li...
Charg=C3=A9 d'=C3=A9tudes et de maintenance
LIMAIR - la Surveillance de l'Air en Limousin
http://www.limair.asso.fr

Ok, thank you!

I'm missing an option to (easily) use date that start with the day
day/month/year (it is the case in Brazil and France for example)

I'm using something like tha
date_Ymd="%s/%s/%s" % (datedayfirst.split('/')[2],datedayfirst.split
('/')[1],datedayfirst.split ('/')[0])

I was lookigng for sometinh like that :

datestr2num(a,dayfirst=True)
or
datestr2num(a,fmt="%d/%m/%Y")

On Dec 11, 2007 11:16 AM, John Hunter <jd...@gm...> wrote:

> On Dec 11, 2007 6:00 AM, Emmanuel <emm...@fa...> wrote:
> > Hi,
> >
> > I've a little problem with date conversion. I have a csv file which
> looks
> > like :
> > "Data","Valor"
> > "15/01/2007"," 6,700012000"
> > "12/01/2007"," 6,659903000"
> >
> > "11/01/2007"," 6,701586000"
> >
> > I try to get date using function strpdate2num in load doing this :
>
> Try stripping the double quote characters from you file.
>
> JDH
>
> -------------------------------------------------------------------------
> SF.Net email is sponsored by:
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>