Thread: [Matplotlib-users] How to change the size of the numbers under the axis

SourceForge Headquarters 1320 Columbia Street Suite 310 San Diego, CA 92101 +1 (858) 422-6466

Hello,

Do you know to change the size of the numbers under the axis?

fabien

On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
> Hello,
> 
> Do you know to change the size of the numbers under the axis?
>

import matplotlib
matplotlib.rcParams['axes.labelsize'] = 12.0

Hope this helps.

-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

There is no effect...

2012/8/30 Damon McDougall <dam...@gm...>

> On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
> > Hello,
> >
> > Do you know to change the size of the numbers under the axis?
> >
>
> import matplotlib
> matplotlib.rcParams['axes.labelsize'] = 12.0
>
> Hope this helps.
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> B2.39
> Mathematics Institute
> University of Warwick
> Coventry
> West Midlands
> CV4 7AL
> United Kingdom
>

On Thu, Aug 30, 2012 at 11:58 AM, Fabien Lafont <laf...@gm...>wrote:

> There is no effect...
>
>
> 2012/8/30 Damon McDougall <dam...@gm...>
>
>> On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
>> > Hello,
>> >
>> > Do you know to change the size of the numbers under the axis?
>> >
>>
>> import matplotlib
>> matplotlib.rcParams['axes.labelsize'] = 12.0
>>
>> Hope this helps.
>>
>>
You want to modify "xtick.labelsize" or "ytick.labelsize".  By default,
they are "medium", but you can use a number for it as well.
"axes.labelsize" effects the axes labels, not the labels for the ticks.

Cheers!
Ben Root

Hi,

But how can I do it for every graph and without creating axis?

I've seen this example:

import numpy as npimport matplotlib.pyplot as plt
# plt.figure creates a matplotlib.figure.Figure instancefig =
plt.figure()rect = fig.patch # a rectangle
instancerect.set_facecolor('lightgoldenrodyellow')
ax1 = fig.add_axes([0.1, 0.3, 0.4, 0.4])rect =
ax1.patchrect.set_facecolor('lightslategray')

for label in ax1.xaxis.get_ticklabels():
    # label is a Text instance
    label.set_color('red')
    label.set_rotation(45)
    label.set_fontsize(16)

I don't manage to use only  label.set_fontsize(16). It looks so
complicated.

2012/8/30 Benjamin Root <ben...@ou...>

>
>
> On Thu, Aug 30, 2012 at 11:58 AM, Fabien Lafont <laf...@gm...>wrote:
>
>> There is no effect...
>>
>>
>> 2012/8/30 Damon McDougall <dam...@gm...>
>>
>>> On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
>>> > Hello,
>>> >
>>> > Do you know to change the size of the numbers under the axis?
>>> >
>>>
>>> import matplotlib
>>> matplotlib.rcParams['axes.labelsize'] = 12.0
>>>
>>> Hope this helps.
>>>
>>>
> You want to modify "xtick.labelsize" or "ytick.labelsize".  By default,
> they are "medium", but you can use a number for it as well.
> "axes.labelsize" effects the axes labels, not the labels for the ticks.
>
> Cheers!
> Ben Root
>
>

On Thu, Aug 30, 2012 at 12:53 PM, Fabien Lafont <laf...@gm...>wrote:

> Hi,
>
> But how can I do it for every graph and without creating axis?
>
>
>
We just told you:

import matplotlib
matplotlib.rcParams['xticks.labelsize'] = 12.0

Whenever a plot is made, it obtains the defaults from the rcParams.  Note,
if you are changing the rcParams *after* creating a plot, then this would
have no effect.

Cheers!
Ben Root

On Thu, Aug 30, 2012 at 12:04:48PM -0400, Benjamin Root wrote:
> On Thu, Aug 30, 2012 at 11:58 AM, Fabien Lafont <laf...@gm...>wrote:
> 
> > There is no effect...
> >
> >
> > 2012/8/30 Damon McDougall <dam...@gm...>
> >
> >> On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
> >> > Hello,
> >> >
> >> > Do you know to change the size of the numbers under the axis?
> >> >
> >>
> >> import matplotlib
> >> matplotlib.rcParams['axes.labelsize'] = 12.0
> >>
> >> Hope this helps.
> >>
> >>
> You want to modify "xtick.labelsize" or "ytick.labelsize".  By default,
> they are "medium", but you can use a number for it as well.
> "axes.labelsize" effects the axes labels, not the labels for the ticks.
>

Thanks for that, Ben. Apologies if I caused confusion.

-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

I've tried also but it returns an error:

 matplotlib.rcParams['xticks.labelsize'] = 12.0
  File "C:\Python27\lib\site-packages\matplotlib\__init__.py", line 653, in
__setitem__
    See rcParams.keys() for a list of valid parameters.' % (key,))
KeyError: 'xticks.labelsize is not a valid rc parameter.See rcParams.keys()
for a list of valid parameters.'

2012/8/30 Damon McDougall <dam...@gm...>

> On Thu, Aug 30, 2012 at 12:04:48PM -0400, Benjamin Root wrote:
> > On Thu, Aug 30, 2012 at 11:58 AM, Fabien Lafont <laf...@gm...
> >wrote:
> >
> > > There is no effect...
> > >
> > >
> > > 2012/8/30 Damon McDougall <dam...@gm...>
> > >
> > >> On Thu, Aug 30, 2012 at 05:50:18PM +0200, Fabien Lafont wrote:
> > >> > Hello,
> > >> >
> > >> > Do you know to change the size of the numbers under the axis?
> > >> >
> > >>
> > >> import matplotlib
> > >> matplotlib.rcParams['axes.labelsize'] = 12.0
> > >>
> > >> Hope this helps.
> > >>
> > >>
> > You want to modify "xtick.labelsize" or "ytick.labelsize".  By default,
> > they are "medium", but you can use a number for it as well.
> > "axes.labelsize" effects the axes labels, not the labels for the ticks.
> >
>
> Thanks for that, Ben. Apologies if I caused confusion.
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> B2.39
> Mathematics Institute
> University of Warwick
> Coventry
> West Midlands
> CV4 7AL
> United Kingdom
>

On Thu, Aug 30, 2012 at 07:06:14PM +0200, Fabien Lafont wrote:
> I've tried also but it returns an error:
> 
>  matplotlib.rcParams['xticks.labelsize'] = 12.0
>   File "C:\Python27\lib\site-packages\matplotlib\__init__.py", line 653, in
> __setitem__
>     See rcParams.keys() for a list of valid parameters.' % (key,))
> KeyError: 'xticks.labelsize is not a valid rc parameter.See rcParams.keys()
> for a list of valid parameters.'
>

It's actually 'xtick.labelsize'. No 's'.

-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

Thanks,

I've found the problem. I use xlabel("name of my axis", size= 30) after
matplotlib.rcParams['xtick.
labelsize'] = 12.0 and it cancel it! Is it possible to have a name on the
axe and  matplotlib.rcParams['xticks.
labelsize'] = 12.0 ??

2012/8/30 Damon McDougall <dam...@gm...>

> On Thu, Aug 30, 2012 at 07:06:14PM +0200, Fabien Lafont wrote:
> > I've tried also but it returns an error:
> >
> >  matplotlib.rcParams['xticks.labelsize'] = 12.0
> >   File "C:\Python27\lib\site-packages\matplotlib\__init__.py", line 653,
> in
> > __setitem__
> >     See rcParams.keys() for a list of valid parameters.' % (key,))
> > KeyError: 'xticks.labelsize is not a valid rc parameter.See
> rcParams.keys()
> > for a list of valid parameters.'
> >
>
> It's actually 'xtick.labelsize'. No 's'.
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> B2.39
> Mathematics Institute
> University of Warwick
> Coventry
> West Midlands
> CV4 7AL
> United Kingdom
>

On Thu, Aug 30, 2012 at 07:28:40PM +0200, Fabien Lafont wrote:
> Thanks,
> 
> I've found the problem. I use xlabel("name of my axis", size= 30) after
> matplotlib.rcParams['xtick.
> labelsize'] = 12.0 and it cancel it! Is it possible to have a name on the
> axe and  matplotlib.rcParams['xticks.
> labelsize'] = 12.0 ??
>

Wait a minute. What exactly are you trying to do?

-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

I'm just trying to plot a graph and add a label to each axis of that graph
and change the labelsize of the ticks.

2012/8/30 Damon McDougall <dam...@gm...>

> On Thu, Aug 30, 2012 at 07:28:40PM +0200, Fabien Lafont wrote:
> > Thanks,
> >
> > I've found the problem. I use xlabel("name of my axis", size= 30) after
> > matplotlib.rcParams['xtick.
> > labelsize'] = 12.0 and it cancel it! Is it possible to have a name on the
> > axe and  matplotlib.rcParams['xticks.
> > labelsize'] = 12.0 ??
> >
>
> Wait a minute. What exactly are you trying to do?
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> B2.39
> Mathematics Institute
> University of Warwick
> Coventry
> West Midlands
> CV4 7AL
> United Kingdom
>

On Thu, Aug 30, 2012 at 1:38 PM, Fabien Lafont <laf...@gm...>wrote:

> I'm just trying to plot a graph and add a label to each axis of that graph
> and change the labelsize of the ticks.
>
>
Could you post your code?  What you are describing shouldn't happen.  Also,
which version of matplotlib are you using?

Ben Root

I just create two vectors from a .txt file and I plot them.
I think I have the latest version of matplotlib. I have at least the
last version of python(x,y)

from pylab import*

import matplotlib
matplotlib.rcParams['xtick.labelsize'] = 20.0

B5= genfromtxt("2012-05-14_RC3D3D2C1_D2D1_m18T_18T_Vg32V_20K.dat", usecols =(2))
RH5 = genfromtxt("2012-05-14_RC3D3D2C1_D2D1_m18T_18T_Vg32V_20K.dat",
usecols =(3))
#plot(B5,RH5,"-o",label = "2012-05-14_RC3D3D2C1_D2D1_m18T_18T_Vg32V_20K.dat")

xlabel(u"$ B (T)$", size= 30)
ylabel(u"$R_H (\Omega)$", size= 30)
grid()
legend()
show()

2012/8/30 Benjamin Root <ben...@ou...>:
>
>
> On Thu, Aug 30, 2012 at 1:38 PM, Fabien Lafont <laf...@gm...>
> wrote:
>>
>> I'm just trying to plot a graph and add a label to each axis of that graph
>> and change the labelsize of the ticks.
>>
>
> Could you post your code?  What you are describing shouldn't happen.  Also,
> which version of matplotlib are you using?
>
> Ben Root
>

Le jeudi 30 août 2012 à 19:48 +0200, Fabien Lafont a écrit :
> I just create two vectors from a .txt file and I plot them.
> I think I have the latest version of matplotlib. I have at least the
> last version of python(x,y)
> 
> 
> from pylab import*
> 
> import matplotlib
> matplotlib.rcParams['xtick.labelsize'] = 20.0

In your matplotlib config file 
axes.titlesize      : 10      # fontsize of the axes title
axes.labelsize      : 10      # fontsize of the x any y labels
(see http://matplotlib.sourceforge.net/users/customizing.html )

Actually I just want to do it on that plot not on all my future plot.

2012/8/30 Fabrice Silva <si...@lm...>:
> Le jeudi 30 août 2012 à 19:48 +0200, Fabien Lafont a écrit :
>> I just create two vectors from a .txt file and I plot them.
>> I think I have the latest version of matplotlib. I have at least the
>> last version of python(x,y)
>>
>>
>> from pylab import*
>>
>> import matplotlib
>> matplotlib.rcParams['xtick.labelsize'] = 20.0
>
> In your matplotlib config file
> axes.titlesize      : 10      # fontsize of the axes title
> axes.labelsize      : 10      # fontsize of the x any y labels
> (see http://matplotlib.sourceforge.net/users/customizing.html )
>
>
>

On 30/08/2012 19:00, Fabien Lafont wrote:
> Actually I just want to do it on that plot not on all my future plot.
>
> 2012/8/30 Fabrice Silva <si...@lm...>:
>> Le jeudi 30 août 2012 à 19:48 +0200, Fabien Lafont a écrit :
>>> I just create two vectors from a .txt file and I plot them.
>>> I think I have the latest version of matplotlib. I have at least the
>>> last version of python(x,y)
>>>
>>>
>>> from pylab import*
>>>
>>> import matplotlib
>>> matplotlib.rcParams['xtick.labelsize'] = 20.0
>>
>> In your matplotlib config file
>> axes.titlesize      : 10      # fontsize of the axes title
>> axes.labelsize      : 10      # fontsize of the x any y labels
>> (see http://matplotlib.sourceforge.net/users/customizing.html )
>>
>>
>>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>

I think you're looking for this 
http://matplotlib.sourceforge.net/users/whats_new.html#tick-params

-- 
Cheers.

Mark Lawrence.

Hi,

I think I was tired yesterday.
matplotlib.rcParams['xtick.labelsize'] = 20.0 works perfectly also
with xlabel("name", size= 30)

Thanks all,

Fabien

2012/8/30 Mark Lawrence <bre...@ya...>:
> On 30/08/2012 19:00, Fabien Lafont wrote:
>> Actually I just want to do it on that plot not on all my future plot.
>>
>> 2012/8/30 Fabrice Silva <si...@lm...>:
>>> Le jeudi 30 août 2012 à 19:48 +0200, Fabien Lafont a écrit :
>>>> I just create two vectors from a .txt file and I plot them.
>>>> I think I have the latest version of matplotlib. I have at least the
>>>> last version of python(x,y)
>>>>
>>>>
>>>> from pylab import*
>>>>
>>>> import matplotlib
>>>> matplotlib.rcParams['xtick.labelsize'] = 20.0
>>>
>>> In your matplotlib config file
>>> axes.titlesize      : 10      # fontsize of the axes title
>>> axes.labelsize      : 10      # fontsize of the x any y labels
>>> (see http://matplotlib.sourceforge.net/users/customizing.html )
>>>
>>>
>>>
>>
>> ------------------------------------------------------------------------------
>> Live Security Virtual Conference
>> Exclusive live event will cover all the ways today's security and
>> threat landscape has changed and how IT managers can respond. Discussions
>> will include endpoint security, mobile security and the latest in malware
>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>>
>
> I think you're looking for this
> http://matplotlib.sourceforge.net/users/whats_new.html#tick-params
>
> --
> Cheers.
>
> Mark Lawrence.
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users