[Matplotlib-users] subclassing AutoDateFormatter correctly

How can I correctly subclass AutoDateFormatter and use it in my code? What I am doing is copying the code from matplotlib's AutoDateFormatter and changing the strings for how the dates are represented and making that a class, MyAutoDateFormatter. AutoDateFormatter expects a locator, and I think (

Re: [Matplotlib-users] subclassing AutoDateFormatter correctly

On Sun, Nov 28, 2010 at 8:52 PM, C M wrote: > How can I correctly subclass AutoDateFormatter and use it in my code? > > What I am doing is copying the code from matplotlib's AutoDateFormatter and > changing the strings for how the dates are represented and maki

Re: [Matplotlib-users] subclassing AutoDateFormatter correctly

On Tue, Nov 30, 2010 at 12:23 PM, Ryan May wrote: > On Tue, Nov 30, 2010 at 10:44 AM, C M wrote: > > > > > > On Sun, Nov 28, 2010 at 8:52 PM, C M wrote: > >> > >> How can I correctly subclass AutoDateFormatter and use it in my code? > >&g

Re: [Matplotlib-users] subclassing AutoDateFormatter correctly

On Wed, Dec 1, 2010 at 12:28 AM, Ryan May wrote: > On Tue, Nov 30, 2010 at 7:00 PM, C M wrote: > > Thanks, Ryan. I've done that now. I use the OOP approach to matplotlib > and > > embed it in wxPython, so my example uses that. I did not know how to > apply > >

[Matplotlib-users] upgrade to 1.0 help

Hello. I've decided to upgrade to matplotlib 1.0, but I'll need to fix a few problems that have come up. I was hoping I could get some help on this here. First thing is, I have a bit of point picker code that was written by JJ on this list some time back that has been working well. This is the

Re: [Matplotlib-users] upgrade to 1.0 help

Hello. I've decided to upgrade to matplotlib 1.0, but I'll need to fix a > few problems that have come up. I was hoping I could get some help on this > here. > Second problem: the grid background is gone despite these lines are not throwing any errors (here, self.subplot is an axis): self.

Re: [Matplotlib-users] upgrade to 1.0 help

On Fri, Dec 3, 2010 at 8:10 PM, C M wrote: > > > Hello. I've decided to upgrade to matplotlib 1.0, but I'll need to fix a >> few problems that have come up. I was hoping I could get some help on this >> here. >> > > Second problem: the grid bac

[Matplotlib-users] what is line._invalid in matplotlib 1.0?

Hello. I upgraded from about mpl 0.98.5 to 1.0, and this code, which worked in 0.98.5: if line._invalid: line.recache() now gives this error: AttributeError: 'Line2D' object has no attribute '_invalid' What is now (1.0) the right way to test whether a Line2D object is invalid? T

Re: [Matplotlib-users] what is line._invalid in matplotlib 1.0?

On Sun, Dec 5, 2010 at 9:33 PM, Jae-Joon Lee wrote: > Here is a modified version of the code. Note that since it uses > non-public APIs, it may stop to work again in the future. According to > your original post, you seem to want to pick up points only. I guess > the better way is to have a separ

[Matplotlib-users] unable to point pick 2nd axis after upgrade to mpl 1.0

Hello, list. I have created a runnable sample app that demonstrates the problem (mentioned also in another thread) in the subject line. The sample is: - mpl 1.0 embedded in wxPython using wxAgg backend. - using plot() for simplicity, but see same issue if it is plot_date(). (I do date plotting)

Re: [Matplotlib-users] unable to point pick 2nd axis after upgrade to mpl 1.0

> I have created a runnable sample app that demonstrates the problem Here is a much simpler 10 line sample that doesn't require wxPython and demonstrates the problem: you can't pick the red line. This seems like a bug in mpl 1.0. import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add

Re: [Matplotlib-users] unable to point pick 2nd axis after upgrade to mpl 1.0

On Thu, Dec 9, 2010 at 8:45 PM, Jae-Joon Lee wrote: > As far as I understand, all the events in matplotlib are associated > with a single Axes instance (or None). For overlapping multiple axes, > the axes with highest zorder is picked up. And a "pick > event only works for artists in the associa

Re: [Matplotlib-users] unable to point pick 2nd axis after upgrade to mpl 1.0

> It will work if you explicitly set its transform. > >star, = ax.plot([xdata[ind]], [ydata[ind]], '*', > ms=40, mfc='y', mec='b', > transform=thisline.get_transform()) > > JJ, thank you, this worked in my app as well. > > I also use the identity of the picked line in my

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Thu, Sep 30, 2010 at 7:55 AM, Jae-Joon Lee wrote: > On Thu, Sep 23, 2010 at 10:31 AM, C M wrote: > > Until a more permanent solution is figured out, can anyone recommend > > any workarounds, even if they are a little clunky? I'm embedding mpl > > plots in wxPytho

[Matplotlib-users] floating bar chart?

I looked through the gallery, but didn't see this one and am not sure how to create it. It would be a "floating bar chart" (or floating column chart), like what is seen here: http://peltiertech.com/Excel/pix1/BloodSugarFloater.gif Thanks, Che

Re: [Matplotlib-users] floating bar chart?

On Mon, Jan 24, 2011 at 4:42 PM, Paul Ivanov wrote: > C M, on 2011-01-24 16:27,  wrote: >> I looked through the gallery, but didn't see this one and am not sure >> how to create it.  It would be a "floating bar chart" (or floating >> column chart)

[Matplotlib-users] too many values to unpack with a bar chart

I usually do this for line graphs with markers: line, = self.subplot.plot_date(dates,data) along with some keywords to tweak the plot. I then add line to a dictionary to keep track of it: self.line_to_data_dict[line] = self.activity But today I tried this with a bar chart, just changin

Re: [Matplotlib-users] too many values to unpack with a bar chart

> Just a thought, are you trying out the new legend code? I don't know if I am or not. But these problems are prior to any code regarding the legend. > Could you do a print of the type for bars? When I write it as just bars without the comma it is: bars type = If I write it with the comma (

Re: [Matplotlib-users] too many values to unpack with a bar chart

On Wed, Jan 26, 2011 at 9:16 PM, Jae-Joon Lee wrote: > On Thu, Jan 27, 2011 at 10:07 AM, C M wrote: >> I know the 2nd problem is that a dictionary cannot have a mutable >> object like a list as a key.  But previously, as I said, I was able to >> call line, (with the comma) a

Re: [Matplotlib-users] too many values to unpack with a bar chart

> 3) I am getting just hammered with the following error *a lot* in date > plotting lately: > > ValueError: ordinal must be >= 1 OK, I made up a small runnable sample to show this with bar(). (Using code that someone else wrote[1]). This code runs when using plot_date(), but if you comment that

Re: [Matplotlib-users] too many values to unpack with a bar chart

Hi Paul, > The reason you were getting that error is because unless you > specify otherwise, ax.bar will make the bottom of the bars at 0 - > which isn't an allowed date, hence the error. Change your bar > line to this (I also added align='center', but you can remove it > if you want): Aha, OK th

Re: [Matplotlib-users] too many values to unpack with a bar chart

> just make a numpy array out of your two lists, and you'll be able > to subtract one from the other. > > import numpy as np > top = np.array(top) > bot = np.array(bot) Thank you, Paul. That worked and I'm now able to display bar charts. I appreciate it. Best, Che --

Re: [Matplotlib-users] onpick on a 2 y plot ( via twinx() ) seems to only allow picking of second axes's artists

On Thu, Jan 20, 2011 at 4:44 AM, Stephan Markus wrote: > > Hello! > > I am also using two axes in a plot and want to be able to pick the lines of > both axes. > So far I used MPL 0.99.3 and a button on my interface to change the z-order > of the axes in order to be able to pick lines of the "activ

[Matplotlib-users] exclude lines from a loose_autoscale_view function

I'm not sure if this is going to work to solve an issue I'm having, but I'd like to try it before asking a much more complex question. I have a function, loose_autoscale_view(), that is based on the autoscale_view function in mpl but allows margin arguments to push the margins out a bit more. I'd

[Matplotlib-users] get bboxes of bars in data coordinates

I need to get the bboxes for time-range bars (matplotlib.patches.Rectangle objects) on a bar plot for a custom autoscaling function. Right now, I get them like this, where rectObj = a bar and bboxes = a list of bboxes: bboxes.append(rectObj.get_path().get_extents()) print 'bboxes is: ', bboxes H

Re: [Matplotlib-users] get bboxes of bars in data coordinates

I should add, I can see that (I think) this needs to use a transform to get it in data coordinates, because if I do this to each rectObj (each bar): trans = rectObj.get_patch_transform() print 'trans is: ', trans I get: trans is: BboxTransformTo(Bbox(array([[ 734189.52541214, 730844.],

Re: [Matplotlib-users] get bboxes of bars in data coordinates

On Mon, Mar 28, 2011 at 1:44 PM, C M wrote: > I need to get the bboxes for time-range bars (matplotlib.patches.Rectangle > objects) on a bar plot for a custom autoscaling function. > > Right now, I get them like this, where rectObj = a bar and bboxes = a list > of bboxes: &g

[Matplotlib-users] UserWarning: Attempting to set identical bottom==top

I get this error and would like to know what to do to eliminate it and also what it means: C:\Python25\lib\site-packages\matplotlib\axes.py:2571: UserWarning: Attempting to set identical bottom==top results in singular transformations; automatically expanding. bottom=0, top=0 + 'bottom=%s, top=%s'

Re: [Matplotlib-users] UserWarning: Attempting to set identical bottom==top

On Thu, May 5, 2011 at 10:03 PM, C M wrote: > On Thu, May 5, 2011 at 7:58 PM, Benjamin Root wrote: >> >> >> On Sun, May 1, 2011 at 4:35 PM, C M wrote: >>> >>> I get this error and would like to know what to do to eliminate it and >>> also what

Re: [Matplotlib-users] UserWarning: Attempting to set identical bottom==top

> Because you have a py2exe'ed program, I suspect that whoever packaged the > program should be the one to modify that program to choose its axes limits > more robustly in order to avoid the warning message. Maybe I have been unclear. I am the sole developer of this application, and I occasionall

Re: [Matplotlib-users] UserWarning: Attempting to set identical bottom==top

On Fri, May 6, 2011 at 10:33 AM, Benjamin Root wrote: > On Thu, May 5, 2011 at 10:01 PM, C M wrote: >> >> > Because you have a py2exe'ed program, I suspect that whoever packaged >> > the >> > program should be the one to modify that program to choose i

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Thu, Sep 30, 2010 at 7:55 AM, Jae-Joon Lee wrote: > On Thu, Sep 23, 2010 at 10:31 AM, C M wrote: >> Until a more permanent solution is figured out, can anyone recommend >> any workarounds, even if they are a little clunky?  I'm embedding mpl >> plots in wxPython and

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Wed, May 11, 2011 at 11:07 AM, C M wrote: > On Wed, May 11, 2011 at 12:29 AM, Jae-Joon Lee wrote: >> I think I fixed a similar bug at some point but I'm not sure if that >> is related with this. >> Are you using the *make_axes_area_auto_adjustable* from the cu

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Thu, May 12, 2011 at 1:26 PM, Michael Droettboom wrote: > You can always get a tarball of the current git master by going here: > > https://github.com/matplotlib/matplotlib > > clicking on "Download" and choosing one of the "download source" options > at the top of the popup box. > > Mike Than

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Thu, May 12, 2011 at 2:50 PM, Michael Droettboom wrote: > On 05/12/2011 02:34 PM, C M wrote: >> >> On Thu, May 12, 2011 at 1:26 PM, Michael Droettboom >>  wrote: >> >>> >>> You can always get a tarball of the current git master by going here: >

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Fri, May 13, 2011 at 6:23 AM, Pauli Virtanen wrote: > Thu, 12 May 2011 15:16:43 -0400, C M wrote: > [clip: installing Python modules] >> Is there a step-by-step method on the >> website that shows how to do this? > > Here: http://docs.python.org/install/index.html Tha

Re: [Matplotlib-users] another incorrectly clipped PNG in the gallery

On Wed, May 11, 2011 at 12:29 AM, Jae-Joon Lee wrote: > I think I fixed a similar bug at some point but I'm not sure if that > is related with this. > Are you using the *make_axes_area_auto_adjustable* from the current > git master (check > examples/axes_grid/make_room_for_ylabel_using_axesgrid.py

Re: [Matplotlib-users] mpl newbie question...

I do not know the first thing about Python language.But things are not > going well That's not a "but" but an "of course". How could they possibly go well already? It takes time to learn something. You will get there, bit by bit. > and I do not want to use any other > programs such as GNU

[Matplotlib-users] formatter for durations of varying units

I need to make a dates (on x) vs. durations of time (on y) plots and need to have smart formatting for the y axis. My y data is in the database in the format: '0:00:02.994000', (that is, 2.9 seconds) and I'd like the y axis to be expressed in ticks of, e.g., "2 hrs", or "10 minutes", or "25 seconds

Re: [Matplotlib-users] formatter for durations of varying units

On Tue, Jul 12, 2011 at 3:15 AM, Maximilian Trescher wrote: > Hi, > >> I want to pick a good (dynamic, for zooming) way to format the y axis. >> There are two issues: >> Does (1) seem like the right approach?  And for 2, is there already a >> formatter that is appropriate for this or could be adap

[Matplotlib-users] plot duration given format of '3:04:02.994000'

This a time duration in my database: '3:04:02.994000' (i.e., 3 hrs, 4 min, 2 sec and 994 microsec). It's a string. Is there a way to allow Matplotlib to interpret that directly as a duration of time? Thank you. -- AppS

Re: [Matplotlib-users] plot duration given format of '3:04:02.994000'

On Mon, Jul 18, 2011 at 10:58 AM, Daniel Mader wrote: > Hi, > > why don't you just parse the returned string? > > asdf = '3:04:02.994000' > asdf = asdf.split(':') > temp = asdf[-1].split('.') > print asdf > asdf.pop(-1) > print asdf > asdf.extend(temp) > print asdf > asdf = [int(i) for i in asdf]

[Matplotlib-users] simple question about locator every 0.5

Sorry, this is super-simple, but I'm lost in the whole locator/formatter part of the docs. How can I make a locator that just places a tick at every multiple of 0.5 around the data? So the y axis would look like: 3.5 -- 3.0 -- 2.5 -- 2.0 -- 1.5 -- 1.0 -- etc. Thanks, Che -

Re: [Matplotlib-users] simple question about locator every 0.5

On Wed, Jul 20, 2011 at 7:24 PM, Buchholz, Greg wrote: >>-Original Message- >>From: C M [mailto:cmpyt...@gmail.com] >> >>Sorry, this is super-simple, but I'm lost in the whole >>locator/formatter part of the docs. >> >>How can I make a locat

Re: [Matplotlib-users] simple question about locator every 0.5

On Wed, Jul 20, 2011 at 7:56 PM, Gökhan Sever wrote: > > > On Wed, Jul 20, 2011 at 5:41 PM, C M wrote: >> >> On Wed, Jul 20, 2011 at 7:24 PM, Buchholz, Greg >> wrote: >> >>-----Original Message- >> >>From: C M [mailto:cmpyt...@gmail.com] &

[Matplotlib-users] help with code for DurationFormatter

A runnable code sample is attached. I'm trying to plot durations in time (sec to hours) on the y axis such that if you zoom, it changes the units and axis label appropriately. When run, it looks right. But, when I zoom on the first point, it is shown on the y axis at '0.20' minutes. I would lik

Re: [Matplotlib-users] simple question about locator every 0.5

> Try MultipleLocator: > > from matplotlib.ticker import MultipleLocator > halflocator = MultipleLocator(base=0.5) > ax.xaxis.set_major_locator(halflocator) > > etc. Thanks, that works for me. I didn't think I could use non-integers (0.5) because the docs said, "Set a tick on every integer that i

[Matplotlib-users] center figure.suptitle with axes.set_title

For a figure with just one subplot, I want to have a larger main title (using figure.suptitle) and a smaller subtitle (using axes.set_title). However, using horizontalalignment = 'center' on both the suptitle and title doesn't center the two relative to each other, because my subplot varies in wid

Re: [Matplotlib-users] How do you Plot data generated by a python script?

On Thu, Aug 25, 2011 at 10:01 PM, surfcast23 wrote: > > Hi, > >   there is only one column. so I want a plot of y and x. With y taking > values running from 0 to n  or 7 in my example and x as the average of the > values that are contained in the rows in my example it was 5.57. It seems to me tha

Re: [Matplotlib-users] How do you Plot data generated by a python script?

On Sat, Sep 3, 2011 at 7:32 PM, mdekauwe wrote: > > So you do want a histogram then? I assume you have all of this sorted then, > the histogram function is very good. I don't think he's describing a histogram, because he is not plotting frequency of observations on the y axis, but data values (me

Re: [Matplotlib-users] How do you Plot data generated by a python script?

>> The problem is that I have a data set >> with ~1250 so I cant' do the sorting or finding the mean by hand. That's not a problem--that's programming! Even if you had a data set with five items you should be in the mind set that "by hand" is an 18th century approach. This will drive further pro

[Matplotlib-users] date demo1 not working for me

Hi, I'm new to mpl and want to learn date plotting. Would like to start with the demo, but date_demo1 won't run for me. (My specs: winXP, Python 2.5, matplotlib 0.9.0, numpy 1.0, and yes was connected to the internet when I ran it). I just copied into IDLE and saved it and got this error: Trac

[Matplotlib-users] Fwd: Stumped trying to find basic info

[I also forgot to forward this to the list] Grant, I've had some luck using Google also to find such things, either official documentation or a posting about it on a group or such. E.g., searching the terms "matplotlib" and "colors", gave as the first hit: http://matplotlib.sourceforge.net/matp

[Matplotlib-users] basic understanding of plotting dates

This is really basic stuff but I had some problems navigating in the matplotlib website (*if anyone is interested, I'll list those issues at the end). I want to simply plot dates. After reading the tutorial, I just don't understand how to do it. I will have lists of dates in the format like 2007

Re: [Matplotlib-users] basic understanding of plotting dates

2num(t) > p.plot_date( t, [10,20,30] ) > p.xticks(t) > y = DateFormatter('%Y-%m-%d') > p.gca().xaxis.set_major_formatter(y) > p.draw() > > Mark > > From: "C M" <[EMAIL PROTECTED]> > > Subject: [Matplotlib-users] basic understanding of

Re: [Matplotlib-users] basic understanding of plotting dates

I realize that the clearer question (and one which ties into my original thread) is: do I need pylab to do plot_date()? On 9/4/07, C M <[EMAIL PROTECTED]> wrote: > > Mark, Mark, Brendan, John, thanks for the input. I have a related > question that may help to continue to clear t

Re: [Matplotlib-users] basic understanding of plotting dates

On 9/4/07, Eric Firing <[EMAIL PROTECTED]> wrote: > > C M wrote: > > I realize that the clearer question (and one which ties into my original > > thread) is: do I need pylab to do plot_date()? > > No, plot_date is available as an axes method. Most pylab plotting &g

Re: [Matplotlib-users] basic understanding of plotting dates

> x = [1,2,3] > > y = [10,20,30] > > self.subplot.plot(x, y) > > I don't understand--where did "self" come from? Sorry--"self" here refers to an instance of a wxPanel class in my wxPython app. It is the parent window for the mpl subplot which is meant to be a child of it. The subplot is itself a

[Matplotlib-users] error on build on windows from SVN

I'm having problems building matplotlib on windows from a folder from SVN, and haven't done it before (previously had used the prebuilt binary download). I don't know what I am doing wrong. I'm on winXP, Python 2.5. and will be using wxPython 2.8.4.2 with matplotlib as well. The folder with the c

[Matplotlib-users] error on build on windows from SVN

On 9/24/07, John Hunter <[EMAIL PROTECTED]> wrote: > > On 9/24/07, C M <[EMAIL PROTECTED]> wrote: > > I'm having problems building matplotlib on windows from a folder from > SVN, > > and haven't done it > > before (previously had used the prebuil

[Matplotlib-users] changes in wx embedded plot after py2exe or resizing

Using Python 2.5, wxPython 2.8.4.2 (msw-unicode) matplotlib 0.90.1 on winXP. I have two questions: 1) I have a small working app that produces a matplotlib plot. This is a plot embedded in wxPython (it's not using Pylab). When it is run as a python script, it looks fine. However, after packaging

Re: [Matplotlib-users] changes to plot after py2exe and resizing

On Nov 16, 2007 9:23 AM, John Hunter <[EMAIL PROTECTED]> wrote: > s > > On Nov 15, 2007 10:42 PM, C M <[EMAIL PROTECTED]> wrote: > > sorry, the last email did not get the pic attached. retrying, and text > > recopied below: > >

Re: [Matplotlib-users] changes to plot after py2exe and resizing

On Nov 17, 2007 7:59 AM, John Hunter <[EMAIL PROTECTED]> wrote: > On Nov 17, 2007 12:26 AM, C M <[EMAIL PROTECTED]> wrote: > > > The font problem turned out to be simply that I didn't realize that the > > latest version of matplotlib comes with the matplotlibrc

Re: [Matplotlib-users] Wanted: recommendations on embedding matplotlib in a wxPython application

> > The wiki suggests either MPlot or WxMpl for embedding. Which might be > preferable for a display-only use? In other words, what would be the > simpliest, easiest, most pragmatic approach? > So far in my experience, and as I was recommended, the "simpliest, easiest, most pragmatic approach" has

Re: [Matplotlib-users] Wanted: recommendations on embedding matplotlib in a wxPython application

> > There is a link on that page to this > > exampleof direct > > embedding with wx. I was able to start with this and adapt it to my > needs. > > I've looked closely at this, and need to figure out how to translate it > from a stand-alone exa

Re: [Matplotlib-users] Wanted: recommendations on embedding matplotlib in a wxPython application

On Nov 27, 2007 11:27 AM, Rich Shepard <[EMAIL PROTECTED]> wrote: > On Mon, 26 Nov 2007, C M wrote: > > > Basically what I did (sorry if this is too basic, but I'm pretty new to > > this and this may jog others to correct deficiencies in this simple > >

[Matplotlib-users] Date formatting and axes confusion

Using latest matplotlib (0.91.1) and have two about date formatting. The following two questions are put here in attempt to get a plot of a month with days 1-31 neatly fit onto the x axis. 1. Using DateFormatter class to format dates and am confused as to how to set the axis properties like font

Re: [Matplotlib-users] fill in data points

On Dec 9, 2007 7:57 PM, Jordan Atlas <[EMAIL PROTECTED]> wrote: > Hello all, > >Does matplotlib allow the control of "fill" in data plots? For > example, plotting data as 'empty' squares as opposed to 'filled' > squares? I haven't been able to find anything in the documentation and > I'm won

Re: [Matplotlib-users] Rendering of fonts in plots does not honor user-specified parameters

On Dec 13, 2007 4:01 PM, Orest Kozyar <[EMAIL PROTECTED]> wrote: > I've been trying to set the font properties of the plots that I've > been making with matplotlib; however, there appears to be a problem > with font rendering. For example, when I check the properties of text > on the axes, etc, t

Re: [Matplotlib-users] plotting filled lines with missing data?

Pierre, I was interested in learning more about TimeSeries, and had a few questions... Your data is indexed in time, right ? Your x-axis is a date object ? Just to be clear on the language: "indexed in time" means data for which the x-axis is a series of dates, correct? But I am not sure what

Re: [Matplotlib-users] question on usage of DateFormatter

On Tue, May 27, 2008 at 5:08 PM, John Hunter <[EMAIL PROTECTED]> wrote: > On Tue, May 27, 2008 at 4:03 PM, C M <[EMAIL PROTECTED]> wrote: > >> John, do you know why the times are coming out as 00:00:00 in your >> example (and mine when I tried it), even though the

Re: [Matplotlib-users] New matplotlib website

On Mon, Jun 2, 2008 at 3:15 AM, Pierre Raybaut <[EMAIL PROTECTED]> wrote: > Hi matplotlib developers, > > Congratulations for the brand new matplotlib website! > It looks great and modern, and that's exactly what matplotlib deserves. > > And congratulations for the new release as well, of course. >

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