loglog plot

#1

Hi,

I have a few questions about the loglog plot :

1- Is there a way to a have axis format with real numbers rather than
numbers with exponent ?

2- I would like to have a grid not only for 10^2, 10^3, 10^4, 10^5 ... but
also for the minor axis ticks. is it possible ?

3- I use loglog to plot parallel lines. How can I have the function label
directly displaid next to the plotted straight lines ?

Thanks for your tips.

···

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#2

Hi,

I have a few questions about the loglog plot :

1- Is there a way to a have axis format with real numbers rather than

numbers with exponent ?

import matplotlib.pyplot as plt
ax1 = plt.gca()
ax1.yaxis.set_major_formatter(ticker.FormatStrFormatter("%.2f"))

You can check formatting options from http://docs.python.org/library/stdtypes.html#string-formatting-operations

2- I would like to have a grid not only for 10^2, 10^3, 10^4, 10^5 … but

also for the minor axis ticks. is it possible ?

You can use plt.yticks() to get new ticks as well as grids. Do you know how to make ticklabels like 5x10^2 etc…? This I couldn’t figure yet.

3- I use loglog to plot parallel lines. How can I have the function label

directly displaid next to the plotted straight lines ?

Thanks for your tips.

plt.text and some fine-tuning?

···

On Tue, Sep 15, 2009 at 1:24 AM, redrum <jvander59@…2785…> wrote:

–
Gökhan

#3

Thanks Gökhan. It helped.

···

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#4

You are welcome. My response to your 2nd question is still unknown, also I have another question. Anyone knows how to achieve that?

Thanks.

2- I would like to have a grid not only for 10^2, 10^3, 10^4, 10^5 … but

also for the minor axis ticks. is it possible ?

You
can use plt.yticks() to get new ticks as well as grids. Do you know how
to make ticklabels like 5x10^2 etc…? This I couldn’t figure yet.

···

On Wed, Sep 16, 2009 at 2:25 PM, Gökhan Sever <gokhansever@…287…> wrote:

On Tue, Sep 15, 2009 at 1:24 AM, redrum <jvander59@…32…> wrote:

Hi,

I have a few questions about the loglog plot :

1- Is there a way to a have axis format with real numbers rather than

numbers with exponent ?

import matplotlib.pyplot as plt
ax1 = plt.gca()
ax1.yaxis.set_major_formatter(ticker.FormatStrFormatter("%.2f"))

You can check formatting options from http://docs.python.org/library/stdtypes.html#string-formatting-operations

2- I would like to have a grid not only for 10^2, 10^3, 10^4, 10^5 … but

also for the minor axis ticks. is it possible ?

You can use plt.yticks() to get new ticks as well as grids. Do you know how to make ticklabels like 5x10^2 etc…? This I couldn’t figure yet.

3- I use loglog to plot parallel lines. How can I have the function label

directly displaid next to the plotted straight lines ?

Thanks for your tips.

plt.text and some fine-tuning?

–
Gökhan

–
Gökhan