[Matplotlib-users] Scientific notation digits at left-bottom corner of figure
Jody Klymak
jklymak at uvic.ca
Sun Oct 29 22:44:13 EDT 2017
Maybe?
def format_coord(x, y):
return 'x=%4.4e, y=%4.4e’%(x, y)) # or whatever formatting you want
ax.format_coord = format_coord
Cheers, Jody
> On Oct 29, 2017, at 19:36 PM, Ardeal LIANG <ardeal.liang at philips.com> wrote:
>
> Hi Jody,
>
> I apologize if I said it backwards!
> I think you now get what I want.
>
> I tried your code. It didn’t work still.
>
> Best Regards,
> Ardeal Liang
>
> From: Jody Klymak [mailto:jklymak at uvic.ca]
> Sent: 2017年10月30日 10:34
> To: Ardeal LIANG <ardeal.liang at philips.com>
> Cc: Firing Eric <efiring at hawaii.edu>; matplotlib-users at python.org
> Subject: Re: [Matplotlib-users] Scientific notation digits at left-bottom corner of figure
>
> Did you try:
>
> from matplotlib.ticker import ScalarFormatter
>
> fmt_no_sci = ScalarFormatter(useOffset=False)
> fmt_no_sci.set_scientific(True) # NOTE True instead of False.
>
> I think you just said it backwards: You want scientific ntoation, not decimal notation.
>
> Cheers, Jody
>
>
>
> On Oct 29, 2017, at 19:29 PM, Ardeal LIANG <ardeal.liang at philips.com <mailto:ardeal.liang at philips.com>> wrote:
>
> Hi Jody,
>
> Please check the red ellipse in the picture.
>
> I want the value 1.85092e+06 to be 1850922 in the red ellipse in the following picture.
>
>
> fmt_no_sci = ScalarFormatter(useOffset=False)
> fmt_no_sci.set_scientific(False)
> # ax.fmt_xaxis = fmt_no_sci
>
> fig = plt.figure()
> ax = fig.add_subplot(111)
> ax.plot(testdata)
> ax.fmt_xaxis = fmt_no_sci
> plt.show(0)
>
> The x axis value displayed at the left-bottom corner of the figure is still scientific notation, but not decimal notation.
> Please check the x axis value displayed at the left-bottom corner of the figure in the red circle.
> <image001.jpg>
>
>
>
>
> Best Regards,
> Ardeal Liang
>
> From: Jody Klymak [mailto:jklymak at uvic.ca <mailto:jklymak at uvic.ca>]
> Sent: 2017年10月30日 10:24
> To: Ardeal LIANG <ardeal.liang at philips.com <mailto:ardeal.liang at philips.com>>
> Cc: Firing Eric <efiring at hawaii.edu <mailto:efiring at hawaii.edu>>; matplotlib-users at python.org <mailto:matplotlib-users at python.org>
> Subject: Re: [Matplotlib-users] Scientific notation digits at left-bottom corner of figure
>
>
>
>
>
> On Oct 29, 2017, at 17:46 PM, Ardeal LIANG <ardeal.liang at philips.com <mailto:ardeal.liang at philips.com>> wrote:
>
> HI Eric,
>
> Did you review the picture attached in my former email?
> I suspect you go to the wrong direction about what I want to ask.
>
> Best Regards,
> Ardeal Liang
>
> Hi Ardeal,
>
> Its not clear to me what you want. Do you want 3.2 x 10^3 instead of 0.0032? The former is scientific and the latter decimal.
>
> Thanks, Jody
>
>
>
>
>
>
> -----Original Message-----
> From: Eric Firing [mailto:efiring at hawaii.edu <mailto:efiring at hawaii.edu>]
> Sent: 2017年10月28日 1:23
> To: Ardeal LIANG <ardeal.liang at philips.com <mailto:ardeal.liang at philips.com>>; matplotlib-users at python.org <mailto:matplotlib-users at python.org>
> Subject: Re: [Matplotlib-users] Scientific notation digits at left-bottom corner of figure
>
> I'm getting a different result, but on the basic point we now agree:
> the ScalarFormatter is not the right tool for this. What you need is a function that takes a number and returns the kind of string you want.
>
> Examples:
>
> def format_as_int(num):
> return str(int(num))
>
> def format_float_no_sci(num):
> return "%f" % num
>
> Eric
>
> On 2017/10/26 10:07 PM, Ardeal LIANG wrote:
>
>
> Hi Eric,
>
> I added your code to my code:
>
> *from *matplotlib.ticker *import *ScalarFormatter
>
> fmt_no_sci = ScalarFormatter(useOffset=False)
> fmt_no_sci.set_scientific(False)
>
> /# ax.fmt_xaxis = fmt_no_sci
>
> /prow = 4
> pcol = 1
> pidx = 0
> fig = plt.figure()
> pidx += 1
> axx = fig.add_subplot(prow, pcol, pidx, ylabel=*'rawdata'*)
> axx.plot(np.abs(testdata))
>
> axx.fmt_xaxis = fmt_no_sci
>
> The *x axis value displayed at the left-bottom corner of the figure*is
> still scientific notation, but not decimal notation.
>
> Best Regards,
>
> Ardeal Liang
>
> -----Original Message-----
> From: Matplotlib-users
> [mailto:matplotlib-users-bounces+ardeal.liang=philips.com at python.org <mailto:matplotlib-users-bounces+ardeal.liang=philips.com at python.org>]
> On Behalf Of Eric Firing
> Sent: 2017年10月27日 16:00
> To: matplotlib-users at python.org <mailto:matplotlib-users at python.org>
> Subject: Re: [Matplotlib-users] Scientific notation digits at
> left-bottom corner of figure
>
> On 2017/10/26 9:50 PM, Ardeal LIANG wrote:
>
>
>
> Hi,
>
>
>
>
>
>
>
> If I put the mouse on the figure, x and y axis are displayed on the
>
>
>
> left-bottom corner of the figure.
>
>
>
> but the x axis is displayed as scientific notation, I want it to be
>
>
>
> displayed as decimal notation.
>
>
>
>
>
>
>
> how to make x axis or y axis values displayed as decimal notation
> on
>
>
>
> the left-bottom corner?
>
>
>
>
>
>
>
> *Best Regards,*
>
>
>
>
>
>
>
> *Ardeal Liang*
>
> Something like this, assuming your Axes is ax:
>
> from matplotlib.ticker import ScalarFormatter
>
> fmt_no_sci = ScalarFormatter(useOffset=False)
>
> fmt_no_sci.set_scientific(False)
>
> ax.fmt_xaxis = fmt_no_sci
>
> Eric
>
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