Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
2010/10/18 Jonathan Slavin jsla...@cfa.harvard.edu:
I'm wondering if there's some relatively automatic way to have the
ticklabels to come out in scientific notation for an axis that uses a
linear scale (and has a range that warrants scientific notation)? For
example, an axis that goes from 0 to 2.E18 by default uses the labels 0,
0.5, 1.0, 1.5, 2.0 and puts 1e18 at the end of the axis. To me this is
unappealing. 1e18 is a computer programming way to write the 10^{18} (in
LaTeX formatting). In IDL the ticklabels are 5.0x10^{17}, 1.0x10^{18},
1.5x10^{18}, 2.0x10^{18}. This is one instance where I think IDL gets
it right and matplotlib gets it wrong. So, as far as I can tell, one
can give the ticklabels by hand, and so I could achieve my desired
labels that way, but it'd be nice to have a more automatic way to do it.
Searching the examples, I've come up empty so far. I would also
advocate changing the default format for labeling axes that fall in this
category. Do the developers have any opinions on this?
There's a thread some monthes ago about this, I provided code to do
this. Currently, this Formatter class didn't make it into matplotlib
due a lack of providing a patch by me. If others agree that this
would be a good feature, I'll clean the code if necessary and provide
another patch for this.
Looking for the thread ...
http://article.gmane.org/gmane.comp.python.matplotlib.general/23824/match=scientific+notation+friedrich
IIRC, the formatter class does NOT provide automatic choice of
appropriate exponent, i.e. you have to provide this in instantiation
time.
hth, and let me know about any progress,
Friedrich
P.S.: I just gave the thread link and didn't look into it further.
But it should be the message I remembered.
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Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
I agree with Jonathan and would very much like to see this feature implemented.
The example shown in the thread didn't show the × symbol, however, which
would be nice to have -- e.g. it should read 2.0 × 10² rather than 2.0 10².
David
On Oct 19, 2010, at 1:08 PM, Friedrich Romstedt wrote:
2010/10/18 Jonathan Slavin jsla...@cfa.harvard.edu:
I'm wondering if there's some relatively automatic way to have the
ticklabels to come out in scientific notation for an axis that uses a
linear scale (and has a range that warrants scientific notation)? For
example, an axis that goes from 0 to 2.E18 by default uses the labels 0,
0.5, 1.0, 1.5, 2.0 and puts 1e18 at the end of the axis. To me this is
unappealing. 1e18 is a computer programming way to write the 10^{18} (in
LaTeX formatting). In IDL the ticklabels are 5.0x10^{17}, 1.0x10^{18},
1.5x10^{18}, 2.0x10^{18}. This is one instance where I think IDL gets
it right and matplotlib gets it wrong. So, as far as I can tell, one
can give the ticklabels by hand, and so I could achieve my desired
labels that way, but it'd be nice to have a more automatic way to do it.
Searching the examples, I've come up empty so far. I would also
advocate changing the default format for labeling axes that fall in this
category. Do the developers have any opinions on this?
There's a thread some monthes ago about this, I provided code to do
this. Currently, this Formatter class didn't make it into matplotlib
due a lack of providing a patch by me. If others agree that this
would be a good feature, I'll clean the code if necessary and provide
another patch for this.
Looking for the thread ...
http://article.gmane.org/gmane.comp.python.matplotlib.general/23824/match=scientific+notation+friedrich
IIRC, the formatter class does NOT provide automatic choice of
appropriate exponent, i.e. you have to provide this in instantiation
time.
hth, and let me know about any progress,
Friedrich
P.S.: I just gave the thread link and didn't look into it further.
But it should be the message I remembered.
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Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
What about inserting \cdot, that's the scientific notation I do prefer? If I'm not mistaken that's what I did that time, might be unreadable in the preview? I checked, when you look close you see the dot in gmane preview. We can make this customisable, with \times as an alternative option. Friedrich -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
I like the times symbol but others prefer the dot (which I missed in the gmane preview!). So I like your suggestion of providing an option to use either \cdot or \times. David On Oct 19, 2010, at 3:23 PM, Friedrich Romstedt wrote: What about inserting \cdot, that's the scientific notation I do prefer? If I'm not mistaken that's what I did that time, might be unreadable in the preview? I checked, when you look close you see the dot in gmane preview. We can make this customisable, with \times as an alternative option. Friedrich -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
2010/10/19 David Pine djp...@gmail.com: I like the times symbol but others prefer the dot (which I missed in the gmane preview!). So I like your suggestion of providing an option to use either \cdot or \times. Okay, I'll try to look into it next week, is that okay with you both? I don't want to do it now since there might be more under the hood, just thinking about automatic exponent choice, I have a module for that, but it needs to pick up all the range the formatter spans over. I'd say we also have use for three other configs of the exponent choice: a) largest b) smallest c) mean d) dynamic exponent. Examples: (a) 0.001 10^2 ... 2.0 10^2 (b) 1.0 10^-1 ... 200.0 10^-1 (c) 0.01 10^1 ... 20.0 10^1 (d) 1.0 10^-1 ... 2.0 10^2 Sorry if there's some mistake but you see the principle. Also the number of digits present need to be configurable ... enough for a week. I favour (c) as the default, and 2 digits precision. Friedrich -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
I think that'd be fine -- i.e. the option of \cdot or \times (though in
the gmane preview the dot looks a bit low). In the mean time, I came up
with the method below that worked for my purpose.
Jon
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import FuncFormatter
def scinot(x,pos=None):
if x == 0:
s = '0'
else:
xp = int(np.floor(np.log10(np.abs(x
mn = x/10.**xp
# Here we truncate to 2 significant digits -- may not be enough
# in all cases
s = '$'+str('%.1f'%mn) +'\\times 10^{'+str(xp)+'}$'
return s
x = np.linspace(0.,2.,10)*1.E18
y = 2.*(x/1.E18) - 1.
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x,y)
ax.xaxis.set_major_formatter(FucFormatter(scinot))
plt.show()
On Tue, 2010-10-19 at 15:30 -0400, David Pine wrote:
I like the times symbol but others prefer the dot (which I missed in the
gmane preview!). So I like your suggestion of providing an option to use
either \cdot or \times.
David
On Oct 19, 2010, at 3:23 PM, Friedrich Romstedt wrote:
What about inserting \cdot, that's the scientific notation I do prefer?
If I'm not mistaken that's what I did that time, might be unreadable
in the preview? I checked, when you look close you see the dot in
gmane preview.
We can make this customisable, with \times as an alternative option.
Friedrich
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Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
2010/10/19 Jonathan Slavin jsla...@cfa.harvard.edu:
I think that'd be fine -- i.e. the option of \cdot or \times (though in
the gmane preview the dot looks a bit low). In the mean time, I came up
with the method below that worked for my purpose.
Okay thx
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import FuncFormatter
def scinot(x,pos=None):
if x == 0:
s = '0'
else:
xp = int(np.floor(np.log10(np.abs(x
mn = x/10.**xp
# Here we truncate to 2 significant digits -- may not be enough
# in all cases
s = '$'+str('%.1f'%mn) +'\\times 10^{'+str(xp)+'}$'
return s
x = np.linspace(0.,2.,10)*1.E18
y = 2.*(x/1.E18) - 1.
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x,y)
ax.xaxis.set_major_formatter(FucFormatter(scinot))
typo for the records although abvious: FuncFormatter
plt.show()
Okay I can do the tedious work of changing my code ASAP but with low
priority ...
Friedrich
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Re: [Matplotlib-users] scientific notation in ticklabels for linear plot
Friedrich, Our e-mails crossed. I don't think the numbers need to have the same exponent. I would go with (d) as my example does. The more difficult part to my mind is the number of significant digits to use. The current code that determines whether to use an offset or not must look at the number of significant digits needed to represent the ticklabels. To me what would be optimal is to, by default, use scientific notation (when the ticklabel numbers are larger or smaller than some range, say 10^3 and 10^-3) except when an offset is called for, say more than 3 significant digits are needed to represent the ticklabel numbers in scientific notation. Jon On Tue, 2010-10-19 at 21:41 +0200, Friedrich Romstedt wrote: 2010/10/19 David Pine djp...@gmail.com: I like the times symbol but others prefer the dot (which I missed in the gmane preview!). So I like your suggestion of providing an option to use either \cdot or \times. Okay, I'll try to look into it next week, is that okay with you both? I don't want to do it now since there might be more under the hood, just thinking about automatic exponent choice, I have a module for that, but it needs to pick up all the range the formatter spans over. I'd say we also have use for three other configs of the exponent choice: a) largest b) smallest c) mean d) dynamic exponent. Examples: (a) 0.001 10^2 ... 2.0 10^2 (b) 1.0 10^-1 ... 200.0 10^-1 (c) 0.01 10^1 ... 20.0 10^1 (d) 1.0 10^-1 ... 2.0 10^2 Sorry if there's some mistake but you see the principle. Also the number of digits present need to be configurable ... enough for a week. I favour (c) as the default, and 2 digits precision. Friedrich -- __ Jonathan D. Slavin Harvard-Smithsonian CfA jsla...@cfa.harvard.edu 60 Garden Street, MS 83 phone: (617) 496-7981 Cambridge, MA 02138-1516 cell: (781) 363-0035 USA __ -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] scientific notation in ticklabels for linear plot
Hi,
I'm wondering if there's some relatively automatic way to have the
ticklabels to come out in scientific notation for an axis that uses a
linear scale (and has a range that warrants scientific notation)? For
example, an axis that goes from 0 to 2.E18 by default uses the labels 0,
0.5, 1.0, 1.5, 2.0 and puts 1e18 at the end of the axis. To me this is
unappealing. 1e18 is a computer programming way to write the 10^{18} (in
LaTeX formatting). In IDL the ticklabels are 5.0x10^{17}, 1.0x10^{18},
1.5x10^{18}, 2.0x10^{18}. This is one instance where I think IDL gets
it right and matplotlib gets it wrong. So, as far as I can tell, one
can give the ticklabels by hand, and so I could achieve my desired
labels that way, but it'd be nice to have a more automatic way to do it.
Searching the examples, I've come up empty so far. I would also
advocate changing the default format for labeling axes that fall in this
category. Do the developers have any opinions on this?
Regards,
Jon
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Re: [Matplotlib-users] scientific notation
2010/7/15 Waléria Antunes David waleriantu...@gmail.com: But, i don't know how do... I tried, but don't, most failed Maybe this is something in the direction you want? You have to adapt the test file. Friedrich embedded_sci_formatter.py Description: Binary data attachment: test.png test.py Description: Binary data -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
Hi... I tried the first option, but failed see my image attached And the second option, i don't understand the variable 'val' ...? On Thu, Jul 15, 2010 at 3:22 PM, Ryan May rma...@gmail.com wrote: On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) One way is to just change the values in the GHz and plot them: plot(x/1e9, y) # Need to change some limits so that they show up in scientific notation: gca().xaxis.get_major_formatter().set_powerlimits((-5,5)) The other way is make a custom formatter that changes the values of the ticks: def fmt_ghz(val, pos=None): return '%g' % (val / 1e9) plot(x, y) gca().xaxis.set_major_formatter(FuncFormatter(fmt_ghz)) You can get more information here: http://matplotlib.sourceforge.net/api/ticker_api.html Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
I forgot of the my image. On Fri, Jul 16, 2010 at 9:10 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi... I tried the first option, but failed see my image attached And the second option, i don't understand the variable 'val' ...? On Thu, Jul 15, 2010 at 3:22 PM, Ryan May rma...@gmail.com wrote: On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) One way is to just change the values in the GHz and plot them: plot(x/1e9, y) # Need to change some limits so that they show up in scientific notation: gca().xaxis.get_major_formatter().set_powerlimits((-5,5)) The other way is make a custom formatter that changes the values of the ticks: def fmt_ghz(val, pos=None): return '%g' % (val / 1e9) plot(x, y) gca().xaxis.set_major_formatter(FuncFormatter(fmt_ghz)) You can get more information here: http://matplotlib.sourceforge.net/api/ticker_api.html Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma attachment: image.png-- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
Please attach the code you used to generate this image. Ben Root On Fri, Jul 16, 2010 at 7:11 AM, Waléria Antunes David waleriantu...@gmail.com wrote: I forgot of the my image. On Fri, Jul 16, 2010 at 9:10 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi... I tried the first option, but failed see my image attached And the second option, i don't understand the variable 'val' ...? On Thu, Jul 15, 2010 at 3:22 PM, Ryan May rma...@gmail.com wrote: On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) One way is to just change the values in the GHz and plot them: plot(x/1e9, y) # Need to change some limits so that they show up in scientific notation: gca().xaxis.get_major_formatter().set_powerlimits((-5,5)) The other way is make a custom formatter that changes the values of the ticks: def fmt_ghz(val, pos=None): return '%g' % (val / 1e9) plot(x, y) gca().xaxis.set_major_formatter(FuncFormatter(fmt_ghz)) You can get more information here: http://matplotlib.sourceforge.net/api/ticker_api.html Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] scientific notation
Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) Can someone help me? See my attachment I need to show this values in scientific notation.. Waléria attachment: current_image.jpg-- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) Can someone help me? See my attachment I need to show this values in scientific notation.. Waléria Waleria, I believe you are looking to use the ticker API. Particularly the FormatStrFormatter that accepts a sprintf()-like format string to express your tick values. For your particular example, --off the top of my head-- the string format would be %.1e. http://matplotlib.sourceforge.net/api/ticker_api.html I hope this helps. Ben Root -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
But, i don't know how do... I tried, but don't, most failed On Thu, Jul 15, 2010 at 11:25 AM, Benjamin Root ben.r...@ou.edu wrote: On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) Can someone help me? See my attachment I need to show this values in scientific notation.. Waléria Waleria, I believe you are looking to use the ticker API. Particularly the FormatStrFormatter that accepts a sprintf()-like format string to express your tick values. For your particular example, --off the top of my head-- the string format would be %.1e. http://matplotlib.sourceforge.net/api/ticker_api.html I hope this helps. Ben Root -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] scientific notation
On Thu, Jul 15, 2010 at 8:41 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi all, I have a code base so that: from pylab import * x = arange (3000,3400) y = -108 * (3.0e14 ** 2)/x**2 pylab..title(Teste) pylab.savefig(imagem.png) plot(x, y) Well the values of the function range(3000,3400) are in Hz..i need to pass GHz which would be in scientific notation as follows bellow: 3000 Hz = 3,0 × 10-6 GHz 3400 Hz = 3,4 x 10-6 Ghz How do I make the graph x-axis is shown in figures scientific notation, for this currently so 3000,3050,3100,,3400 in scientific notation is: (3.0e-6, 3.4e-6) One way is to just change the values in the GHz and plot them: plot(x/1e9, y) # Need to change some limits so that they show up in scientific notation: gca().xaxis.get_major_formatter().set_powerlimits((-5,5)) The other way is make a custom formatter that changes the values of the ticks: def fmt_ghz(val, pos=None): return '%g' % (val / 1e9) plot(x, y) gca().xaxis.set_major_formatter(FuncFormatter(fmt_ghz)) You can get more information here: http://matplotlib.sourceforge.net/api/ticker_api.html Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] scientific notation \times symbol
Hi there: I tried to plot large numbers and scientific notation has to be used. But instead of \times symbol, it used e, which cannot be accepted as publishable. Anyone know how to deal with that? My original code is: import matplotlib.pyplot as plt import numpy as np from matplotlib.ticker import ScalarFormatter # data generation x = np.arange(1,1e3,20) y = x**2 formatter = ScalarFormatter() formatter.set_scientific(True) formatter.set_powerlimits((-3,3)) fig = plt.figure() ax = fig.add_subplot(111) ax.xaxis.set_major_formatter(formatter) ax.yaxis.set_major_formatter(formatter) ax.plot(x,y) plt.show() -- Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
