matplotlib-users Mailing List for matplotlib

And if you meant 'grid', I guess
 ax.grid('on')
should be added.
* Youngung Jeong, 정영웅*
On Mon, Jun 1, 2015 at 4:38 PM, Sterling Smith <sm...@fu...>
wrote:
> Stephen,
>
> In your script, you give
> ax.minorticks_on
> but you need to call that function for anything to occur
> ax.minorticks_on()
>
>
> Also, did you see
> http://matplotlib.org/examples/pylab_examples/axes_props.html
> in case your original question was not answered.
>
> -Sterling
>
> On Jun 1, 2015, at 1:24PM, st...@th... wrote:
>
> > I only see that you added "plt.show()", but neither the grid or the axis
> > labels are showing up.
> >
> >> Here is what I see with a couple of things modified ?
> >> did you expect something else ?
> >>
> >> from matplotlib.backends.backend_pdf import PdfPages
> >> import matplotlib.pyplot as plt
> >> import numpy as np
> >>
> >> fig = plt.figure()
> >> ax = fig.add_subplot(1,1,1)
> >>
> >> x = np.linspace(0,10,50)
> >> y = np.sin(x)
> >>
> >> with PdfPages('grid_test.pdf') as pdf:
> >> plt.clf()
> >>
> >> plt.clf()
> >> plt.plot(x,y)
> >> leg = plt.legend(['legend 1'])
> >> plt.title('Sample title')
> >> ax.set_ylabel('Sample ylabel')
> >> ax.set_xlabel('Sample xlabel')
> >>
> >> ax.set_xticks(np.arange(0, 10, 20))
> >> ax.set_xticks(np.arange(0, 10, 5), minor=True)
> >> ax.set_yticks(np.arange(-1,1,20))
> >> ax.set_yticks(np.arange(-1,1,20), minor=True)
> >>
> >> ax.minorticks_on
> >> plt.show()
> >>
> >> pdf.savefig()
> >>
> >>
> >> [cid:8C8...@or...]
> >>
> >>
> >>
> >> On Jun 1, 2015, at 2:49 PM,
> >> <st...@th...<mailto:st...@th...>>
> >> wrote:
> >>
> >> I am having an issue with the grid not appearing that I cannot figure
> out.
> >> Can anyone help? Thanks. --StephenB
> >>
> >> from matplotlib.backends.backend_pdf import PdfPages
> >> import matplotlib.pyplot as plt
> >> import numpy as np
> >>
> >> fig = plt.figure()
> >> ax = fig.add_subplot(1,1,1)
> >>
> >> x = np.linspace(0,10,50)
> >> y = np.sin(x)
> >>
> >> with PdfPages('grid_test.pdf') as pdf:
> >> plt.clf()
> >>
> >> plt.clf()
> >> plt.plot(x,y)
> >> leg = plt.legend(['legend 1'])
> >> plt.title('Sample title')
> >> ax.set_ylabel('Sample ylabel')
> >> ax.set_xlabel('Sample xlabel')
> >>
> >> ax.set_xticks(np.arange(0, 10, 20))
> >> ax.set_xticks(np.arange(0, 10, 5), minor=True)
> >> ax.set_yticks(np.arange(-1,1,20))
> >> ax.set_yticks(np.arange(-1,1,20), minor=True)
> >>
> >> ax.minorticks_on
> >>
> >> pdf.savefig()
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> _______________________________________________
> >> Matplotlib-users mailing list
> >> Mat...@li...<mailto:
> Mat...@li...>
> >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> >>
> >>
> >>
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>
> ------------------------------------------------------------------------------
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> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Stephen,
In your script, you give 
ax.minorticks_on
but you need to call that function for anything to occur
ax.minorticks_on()
Also, did you see
http://matplotlib.org/examples/pylab_examples/axes_props.html
in case your original question was not answered.
-Sterling
On Jun 1, 2015, at 1:24PM, st...@th... wrote:
> I only see that you added "plt.show()", but neither the grid or the axis
> labels are showing up.
> 
>> Here is what I see with a couple of things modified ?
>> did you expect something else ?
>> 
>> from matplotlib.backends.backend_pdf import PdfPages
>> import matplotlib.pyplot as plt
>> import numpy as np
>> 
>> fig = plt.figure()
>> ax = fig.add_subplot(1,1,1)
>> 
>> x = np.linspace(0,10,50)
>> y = np.sin(x)
>> 
>> with PdfPages('grid_test.pdf') as pdf:
>> plt.clf()
>> 
>> plt.clf()
>> plt.plot(x,y)
>> leg = plt.legend(['legend 1'])
>> plt.title('Sample title')
>> ax.set_ylabel('Sample ylabel')
>> ax.set_xlabel('Sample xlabel')
>> 
>> ax.set_xticks(np.arange(0, 10, 20))
>> ax.set_xticks(np.arange(0, 10, 5), minor=True)
>> ax.set_yticks(np.arange(-1,1,20))
>> ax.set_yticks(np.arange(-1,1,20), minor=True)
>> 
>> ax.minorticks_on
>> plt.show()
>> 
>> pdf.savefig()
>> 
>> 
>> [cid:8C8...@or...]
>> 
>> 
>> 
>> On Jun 1, 2015, at 2:49 PM,
>> <st...@th...<mailto:st...@th...>>
>> wrote:
>> 
>> I am having an issue with the grid not appearing that I cannot figure out.
>> Can anyone help? Thanks. --StephenB
>> 
>> from matplotlib.backends.backend_pdf import PdfPages
>> import matplotlib.pyplot as plt
>> import numpy as np
>> 
>> fig = plt.figure()
>> ax = fig.add_subplot(1,1,1)
>> 
>> x = np.linspace(0,10,50)
>> y = np.sin(x)
>> 
>> with PdfPages('grid_test.pdf') as pdf:
>> plt.clf()
>> 
>> plt.clf()
>> plt.plot(x,y)
>> leg = plt.legend(['legend 1'])
>> plt.title('Sample title')
>> ax.set_ylabel('Sample ylabel')
>> ax.set_xlabel('Sample xlabel')
>> 
>> ax.set_xticks(np.arange(0, 10, 20))
>> ax.set_xticks(np.arange(0, 10, 5), minor=True)
>> ax.set_yticks(np.arange(-1,1,20))
>> ax.set_yticks(np.arange(-1,1,20), minor=True)
>> 
>> ax.minorticks_on
>> 
>> pdf.savefig()
>> 
>> 
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...<mailto:Mat...@li...>
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>> 
>> 
>> 
> 
> 
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

I only see that you added "plt.show()", but neither the grid or the axis
labels are showing up.
> Here is what I see with a couple of things modified ?
> did you expect something else ?
>
> from matplotlib.backends.backend_pdf import PdfPages
> import matplotlib.pyplot as plt
> import numpy as np
>
> fig = plt.figure()
> ax = fig.add_subplot(1,1,1)
>
> x = np.linspace(0,10,50)
> y = np.sin(x)
>
> with PdfPages('grid_test.pdf') as pdf:
> plt.clf()
>
> plt.clf()
> plt.plot(x,y)
> leg = plt.legend(['legend 1'])
> plt.title('Sample title')
> ax.set_ylabel('Sample ylabel')
> ax.set_xlabel('Sample xlabel')
>
> ax.set_xticks(np.arange(0, 10, 20))
> ax.set_xticks(np.arange(0, 10, 5), minor=True)
> ax.set_yticks(np.arange(-1,1,20))
> ax.set_yticks(np.arange(-1,1,20), minor=True)
>
> ax.minorticks_on
> plt.show()
>
> pdf.savefig()
>
>
> [cid:8C8...@or...]
>
>
>
> On Jun 1, 2015, at 2:49 PM,
> <st...@th...<mailto:st...@th...>>
> wrote:
>
> I am having an issue with the grid not appearing that I cannot figure out.
> Can anyone help? Thanks. --StephenB
>
> from matplotlib.backends.backend_pdf import PdfPages
> import matplotlib.pyplot as plt
> import numpy as np
>
> fig = plt.figure()
> ax = fig.add_subplot(1,1,1)
>
> x = np.linspace(0,10,50)
> y = np.sin(x)
>
> with PdfPages('grid_test.pdf') as pdf:
> plt.clf()
>
> plt.clf()
> plt.plot(x,y)
> leg = plt.legend(['legend 1'])
> plt.title('Sample title')
> ax.set_ylabel('Sample ylabel')
> ax.set_xlabel('Sample xlabel')
>
> ax.set_xticks(np.arange(0, 10, 20))
> ax.set_xticks(np.arange(0, 10, 5), minor=True)
> ax.set_yticks(np.arange(-1,1,20))
> ax.set_yticks(np.arange(-1,1,20), minor=True)
>
> ax.minorticks_on
>
> pdf.savefig()
>
>
> ------------------------------------------------------------------------------
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...<mailto:Mat...@li...>
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>

Here is what I see with a couple of things modified ?
did you expect something else ?
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(1,1,1)
x = np.linspace(0,10,50)
y = np.sin(x)
with PdfPages('grid_test.pdf') as pdf:
 plt.clf()
plt.clf()
plt.plot(x,y)
leg = plt.legend(['legend 1'])
plt.title('Sample title')
ax.set_ylabel('Sample ylabel')
ax.set_xlabel('Sample xlabel')
ax.set_xticks(np.arange(0, 10, 20))
ax.set_xticks(np.arange(0, 10, 5), minor=True)
ax.set_yticks(np.arange(-1,1,20))
ax.set_yticks(np.arange(-1,1,20), minor=True)
ax.minorticks_on
plt.show()
pdf.savefig()
[cid:8C8...@or...]
On Jun 1, 2015, at 2:49 PM, <st...@th...<mailto:st...@th...>>
 wrote:
I am having an issue with the grid not appearing that I cannot figure out.
Can anyone help? Thanks. --StephenB
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(1,1,1)
x = np.linspace(0,10,50)
y = np.sin(x)
with PdfPages('grid_test.pdf') as pdf:
 plt.clf()
 plt.clf()
 plt.plot(x,y)
 leg = plt.legend(['legend 1'])
 plt.title('Sample title')
 ax.set_ylabel('Sample ylabel')
 ax.set_xlabel('Sample xlabel')
 ax.set_xticks(np.arange(0, 10, 20))
 ax.set_xticks(np.arange(0, 10, 5), minor=True)
 ax.set_yticks(np.arange(-1,1,20))
 ax.set_yticks(np.arange(-1,1,20), minor=True)
 ax.minorticks_on
 pdf.savefig()
------------------------------------------------------------------------------
_______________________________________________
Matplotlib-users mailing list
Mat...@li...<mailto:Mat...@li...>
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

I am having an issue with the grid not appearing that I cannot figure out.
Can anyone help? Thanks. --StephenB
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(1,1,1)
x = np.linspace(0,10,50)
y = np.sin(x)
with PdfPages('grid_test.pdf') as pdf:
 plt.clf()
 plt.clf()
 plt.plot(x,y)
 leg = plt.legend(['legend 1'])
 plt.title('Sample title')
 ax.set_ylabel('Sample ylabel')
 ax.set_xlabel('Sample xlabel')
 ax.set_xticks(np.arange(0, 10, 20))
 ax.set_xticks(np.arange(0, 10, 5), minor=True)
 ax.set_yticks(np.arange(-1,1,20))
 ax.set_yticks(np.arange(-1,1,20), minor=True)
 ax.minorticks_on
 pdf.savefig()

Please keep discussion on the list.
That warning means some thing is importing pyplot before your file. You
need to make sure that you use `matplotlib.use` before anything in your
process import `pyplot`.
You may need to change your `matplotlibrc` file.
Tom
On Sun, May 31, 2015, 00:30 Peter Rowat <pe...@pe...> wrote:
> My file starts:
> import numpy as np
> import matplotlib
> matplotlib.use('TKAgg')
> import matplotlib.pyplot as plt
> import matplotlib.animation as animation
>
>
> and the animation works, with blit=False, but with this message:
> ======
> /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/matplotlib/__init__.py:1155:
> UserWarning: This call to matplotlib.use() has no effect
> because the backend has already been chosen;
> matplotlib.use() must be called *before* pylab, matplotlib.pyplot,
> or matplotlib.backends is imported for the first time.
>
> warnings.warn(_use_error_msg)
> =======
> So I can live with this, but seems there is something not quite right
> about the __init__.py code
> Should I use a different backed than the OS X backend?
>
> — Peter
>
> On May 30, 2015, at 8:43 PM, Thomas Caswell <tca...@gm...> wrote:
>
> Blitting not working for the osx backend is a long standing issue due to
> differences between what is allowed in the different gui frame works.
>
> You have to change the backend via `use` before you import pyplot. If you
> are still getting the error it is likely you tried to change the backend
> _after_ pyplot was imported, in which case the `use` command does nothing.
>
> Tom
>
> On Sat, May 30, 2015 at 11:03 PM Peter Rowat <pe...@pe...>
> wrote:
>
>> I’m on OS X, trying to write a multi-slider-controlled animation. If I
>> have blit=True in the call to matplotlib.animation,
>> I get this message
>>
>> matplotlib.animation.BackendError: The current backend is 'MacOSX'
>> and may go into an infinite loop with blit turned on. Either
>> turn off blit or use an alternate backend, for example, like
>> 'TKAgg', using the following prepended to your source code:
>>
>> import matplotlib
>> matplotlib.use('TKAgg’)
>> =====
>>
>> When I make this change I still get the same error message, whether blit
>> is set True or False.
>> At least when blit=False the animation runs, which I can live with for
>> the moment.
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>
>