logarithmic plotting and the grid

Hi,

I want a more "detailed" grid for my logarithmic plotting. The following code:

from pylab import *
semilogy(range(100000))
grid(True)
show()

will produce output like this: http://i49.tinypic.com/2dpd3r.png

Notice that the grid uniformly slices the image. And some ticks on the
y-axis doesn't have grid lines. This is not want I want.

Conversely, something like this is preferred:

http://www.mathworks.com/access/helpdesk/help/toolbox/comm/ug/bert_mat_explot1.gif

Thanks!

grid takes an optional argument "which". Unfortunately this is not
properly documented with pylab.grid and Axes.grid.
But see

http://matplotlib.sourceforge.net/api/axis_api.html?highlight=grid#matplotlib.axis.Axis.grid

grid(True) # this turns on gridlines for major ticks
grid(True, which="minor") # this turns on gridlines for minor ticks.

-JJ

···

On Wed, Feb 10, 2010 at 6:18 PM, K L <klu1024@...287...> wrote:

Hi,

I want a more "detailed" grid for my logarithmic plotting. The following code:

from pylab import *
semilogy(range(100000))
grid(True)
show()

will produce output like this: http://i49.tinypic.com/2dpd3r.png

Notice that the grid uniformly slices the image. And some ticks on the
y-axis doesn't have grid lines. This is not want I want.

Conversely, something like this is preferred:

http://www.mathworks.com/access/helpdesk/help/toolbox/comm/ug/bert_mat_explot1.gif

Thanks!

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I think he wants to turn the grid on
for both major and minor ticks. I’m interested in that also. Is there a
way to do that?

Lee

Jae-Joon Lee <lee.j.joon@…287…>
02/10/2010 08:10 PM

To

K L <klu1024@…287…>
cc

matplotlib-users@lists.sourceforge.net
Subject

Re: [Matplotlib-users] logarithmic plotting
and the grid

Caterpillar: Confidential Green
Retain Until: 03/12/2010

`grid takes an optional argument “which”.
Unfortunately this is not

properly documented with pylab.grid and Axes.grid.

But see

http://matplotlib.sourceforge.net/api/axis_api.html?highlight=grid#matplotlib.axis.Axis.grid

grid(True) # this turns on gridlines for major ticks

grid(True, which=“minor”) # this turns on gridlines for minor
ticks.

-JJ

Hi,

I want a more “detailed” grid for my logarithmic plotting.
The following code:

from pylab import *

semilogy(range(100000))

grid(True)

show()

will produce output like this: http://i49.tinypic.com/2dpd3r.png

Notice that the grid uniformly slices the image. And some ticks on
the

y-axis doesn’t have grid lines. This is not want I want.

Conversely, something like this is preferred:

http://www.mathworks.com/access/helpdesk/help/toolbox/comm/ug/bert_mat_explot1.gif

Thanks!


SOLARIS 10 is the OS for Data Centers - provides features such as
DTrace,

···

On Wed, Feb 10, 2010 at 6:18 PM, K L <klu1024@…287…> wrote:

Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW

http://p.sf.net/sfu/solaris-dev2dev


Matplotlib-users mailing list

Matplotlib-users@lists.sourceforge.net

https://lists.sourceforge.net/lists/listinfo/matplotlib-users


SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,

Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW

http://p.sf.net/sfu/solaris-dev2dev


Matplotlib-users mailing list

Matplotlib-users@lists.sourceforge.net

https://lists.sourceforge.net/lists/listinfo/matplotlib-users

`

ax.grid(True, which=‘major’)
ax.grid(True, which=‘minor’)

JDH

···

On Thu, Feb 11, 2010 at 8:13 AM, Lee Boger <Boger_Lee@…2968…> wrote:

I think he wants to turn the grid on
for both major and minor ticks. I’m interested in that also. Is there a
way to do that?