Re: [Matplotlib-users] X Window System error

2012-10-02 Thread Eric Firing
On 2012/10/01 7:28 PM, Mic wrote:
 Hi,

 I have got the following error with the following code:
 /$ python mpl.py/
 /Traceback (most recent call last):/
 /  File
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtk.py,
 line 398, in expose_event/
 /self._render_figure(self._pixmap, w, h)/
 /  File
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py,
 line 75, in _render_figure/
 /FigureCanvasAgg.draw(self)/
 /  File
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
 line 416, in draw/
 /self.renderer = self.get_renderer()/
 /  File
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
 line 435, in get_renderer/
 /self.renderer = RendererAgg(w, h, self.figure.dpi)/
 /  File
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
 line 72, in __init__/
 /self._renderer = _RendererAgg(int(width), int(height), dpi,
 debug=False)/
 /ValueError: width and height must each be below 32768/
 /The program 'mpl.py' received an X Window System error./
 /This probably reflects a bug in the program./
 /The error was 'BadAlloc (insufficient resources for operation)'./
 /  (Details: serial 486 error_code 11 request_code 53 minor_code 0)/
 /  (Note to programmers: normally, X errors are reported asynchronously;/
 /   that is, you will receive the error a while after causing it./
 /   To debug your program, run it with the --sync command line/
 /   option to change this behavior. You can then get a meaningful/
 /   backtrace from your debugger if you break on the gdk_x_error()
 function.)/

 With the following code:
 /import random /
 /import matplotlib.pyplot as plt /
 //
 /coverages = [random.randint(1,10)*2] * 4605 /
 /contig_names = ['AAB0008r'] * len(coverages) /
 /# Set the figure size /
 /#fig = plt.figure(1, [20, 2]) /
 /fig = plt.figure(figsize=(int(len(coverages)*0.1), 4)) /
 //
 /ax = fig.add_subplot(111) /
 //
 /# Set the x-axis limit /
 /#ax.set_xlim(-1,100) /
 /ax.set_xlim(0,len(coverages)) /
 /#ax.set_ylim(0,3) /
 /ax.yaxis.grid(True, linestyle='-', which='major', color='grey',
 alpha=0.5) /
 //
 /ind = range(len(coverages)) /
 /rects = ax.bar(ind, coverages, width=0.1, align='center',
 color='thistle') /
 /ax.set_xticks(ind) /
 /#ax.set_xticklabels(contig_names)/
 /#ax.tick_params(axis='both', which='major', labelsize=10)/
 /#ax.tick_params(axis='both', which='minor', labelsize=8)/
 /
 /
 /
 /
 /#function to auto-rotate the x axis labels/
 /fig.autofmt_xdate()/
 /plt.setp(ax.get_xticklabels(), fontsize=8, rotation='vertical')/
 /plt.show()/

 How is it possible to get big charts?

It looks like you are trying to make a figure that is 460 inches by 4 
inches.  How do you expect to display or print it?  I think displaying 
it is out of the question, so you would need to use a non-interactive 
backend.  I don't know whether ps or pdf can handle those sorts of 
dimensions.

Eric


 Thank you in advance.



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Re: [Matplotlib-users] X Window System error

2012-10-02 Thread Mic
Hi Eric,
I have a dataset which contains about 4600 values.

Is it possible to display 4600 values with a bar char and labels?

Thank you in advance.



On Tue, Oct 2, 2012 at 4:04 PM, Eric Firing efir...@hawaii.edu wrote:

 On 2012/10/01 7:28 PM, Mic wrote:
  Hi,
 
  I have got the following error with the following code:
  /$ python mpl.py/
  /Traceback (most recent call last):/
  /  File
  /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtk.py,
  line 398, in expose_event/
  /self._render_figure(self._pixmap, w, h)/
  /  File
 
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py,
  line 75, in _render_figure/
  /FigureCanvasAgg.draw(self)/
  /  File
  /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
  line 416, in draw/
  /self.renderer = self.get_renderer()/
  /  File
  /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
  line 435, in get_renderer/
  /self.renderer = RendererAgg(w, h, self.figure.dpi)/
  /  File
  /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
  line 72, in __init__/
  /self._renderer = _RendererAgg(int(width), int(height), dpi,
  debug=False)/
  /ValueError: width and height must each be below 32768/
  /The program 'mpl.py' received an X Window System error./
  /This probably reflects a bug in the program./
  /The error was 'BadAlloc (insufficient resources for operation)'./
  /  (Details: serial 486 error_code 11 request_code 53 minor_code 0)/
  /  (Note to programmers: normally, X errors are reported asynchronously;/
  /   that is, you will receive the error a while after causing it./
  /   To debug your program, run it with the --sync command line/
  /   option to change this behavior. You can then get a meaningful/
  /   backtrace from your debugger if you break on the gdk_x_error()
  function.)/
 
  With the following code:
  /import random /
  /import matplotlib.pyplot as plt /
  //
  /coverages = [random.randint(1,10)*2] * 4605 /
  /contig_names = ['AAB0008r'] * len(coverages) /
  /# Set the figure size /
  /#fig = plt.figure(1, [20, 2]) /
  /fig = plt.figure(figsize=(int(len(coverages)*0.1), 4)) /
  //
  /ax = fig.add_subplot(111) /
  //
  /# Set the x-axis limit /
  /#ax.set_xlim(-1,100) /
  /ax.set_xlim(0,len(coverages)) /
  /#ax.set_ylim(0,3) /
  /ax.yaxis.grid(True, linestyle='-', which='major', color='grey',
  alpha=0.5) /
  //
  /ind = range(len(coverages)) /
  /rects = ax.bar(ind, coverages, width=0.1, align='center',
  color='thistle') /
  /ax.set_xticks(ind) /
  /#ax.set_xticklabels(contig_names)/
  /#ax.tick_params(axis='both', which='major', labelsize=10)/
  /#ax.tick_params(axis='both', which='minor', labelsize=8)/
  /
  /
  /
  /
  /#function to auto-rotate the x axis labels/
  /fig.autofmt_xdate()/
  /plt.setp(ax.get_xticklabels(), fontsize=8, rotation='vertical')/
  /plt.show()/
 
  How is it possible to get big charts?

 It looks like you are trying to make a figure that is 460 inches by 4
 inches.  How do you expect to display or print it?  I think displaying
 it is out of the question, so you would need to use a non-interactive
 backend.  I don't know whether ps or pdf can handle those sorts of
 dimensions.

 Eric

 
  Thank you in advance.
 
 
 
 
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Re: [Matplotlib-users] X Window System error

2012-10-02 Thread Eric Firing
On 2012/10/02 4:12 AM, Mic wrote:
 Hi Eric,
 I have a dataset which contains about 4600 values.

 Is it possible to display 4600 values with a bar char and labels?

 Thank you in advance.

Mic,

I don't think so, as a practical matter.  A screen doesn't even have 
that many pixels of width.

Eric




 On Tue, Oct 2, 2012 at 4:04 PM, Eric Firing efir...@hawaii.edu
 mailto:efir...@hawaii.edu wrote:

 On 2012/10/01 7:28 PM, Mic wrote:
   Hi,
  
   I have got the following error with the following code:
   /$ python mpl.py/ http://mpl.py/
   /Traceback (most recent call last):/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtk.py,
   line 398, in expose_event/
   /self._render_figure(self._pixmap, w, h)/
   /  File
  
 
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py,
   line 75, in _render_figure/
   /FigureCanvasAgg.draw(self)/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 416, in draw/
   /self.renderer = self.get_renderer()/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 435, in get_renderer/
   /self.renderer = RendererAgg(w, h, self.figure.dpi)/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 72, in __init__/
   /self._renderer = _RendererAgg(int(width), int(height), dpi,
   debug=False)/
   /ValueError: width and height must each be below 32768/
   /The program 'mpl.py' received an X Window System error./
   /This probably reflects a bug in the program./
   /The error was 'BadAlloc (insufficient resources for operation)'./
   /  (Details: serial 486 error_code 11 request_code 53 minor_code 0)/
   /  (Note to programmers: normally, X errors are reported
 asynchronously;/
   /   that is, you will receive the error a while after causing it./
   /   To debug your program, run it with the --sync command line/
   /   option to change this behavior. You can then get a meaningful/
   /   backtrace from your debugger if you break on the gdk_x_error()
   function.)/
  
   With the following code:
   /import random /
   /import matplotlib.pyplot as plt /
   //
   /coverages = [random.randint(1,10)*2] * 4605 /
   /contig_names = ['AAB0008r'] * len(coverages) /
   /# Set the figure size /
   /#fig = plt.figure(1, [20, 2]) /
   /fig = plt.figure(figsize=(int(len(coverages)*0.1), 4)) /
   //
   /ax = fig.add_subplot(111) /
   //
   /# Set the x-axis limit /
   /#ax.set_xlim(-1,100) /
   /ax.set_xlim(0,len(coverages)) /
   /#ax.set_ylim(0,3) /
   /ax.yaxis.grid(True, linestyle='-', which='major', color='grey',
   alpha=0.5) /
   //
   /ind = range(len(coverages)) /
   /rects = ax.bar(ind, coverages, width=0.1, align='center',
   color='thistle') /
   /ax.set_xticks(ind) /
   /#ax.set_xticklabels(contig_names)/
   /#ax.tick_params(axis='both', which='major', labelsize=10)/
   /#ax.tick_params(axis='both', which='minor', labelsize=8)/
   /
   /
   /
   /
   /#function to auto-rotate the x axis labels/
   /fig.autofmt_xdate()/
   /plt.setp(ax.get_xticklabels(), fontsize=8, rotation='vertical')/
   /plt.show()/
  
   How is it possible to get big charts?

 It looks like you are trying to make a figure that is 460 inches by 4
 inches.  How do you expect to display or print it?  I think displaying
 it is out of the question, so you would need to use a non-interactive
 backend.  I don't know whether ps or pdf can handle those sorts of
 dimensions.

 Eric

  
   Thank you in advance.
  
  
  
  
 
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 Relic APM
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   what is happening inside your Ruby, Python, PHP, Java, and .NET app
   Try New Relic at no cost today and get our sweet Data Nerd shirt too!
   http://p.sf.net/sfu/newrelic-dev2dev
  
  
  
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 mailto:Matplotlib-users@lists.sourceforge.net
   https://lists.sourceforge.net/lists/listinfo/matplotlib-users
  


 
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Re: [Matplotlib-users] X Window System error

2012-10-02 Thread Damon McDougall
On Tue, Oct 2, 2012 at 6:07 PM, Eric Firing efir...@hawaii.edu wrote:
 On 2012/10/02 4:12 AM, Mic wrote:
 Hi Eric,
 I have a dataset which contains about 4600 values.

 Is it possible to display 4600 values with a bar char and labels?

 Thank you in advance.

 Mic,

 I don't think so, as a practical matter.  A screen doesn't even have
 that many pixels of width.

 Eric




 On Tue, Oct 2, 2012 at 4:04 PM, Eric Firing efir...@hawaii.edu
 mailto:efir...@hawaii.edu wrote:

 On 2012/10/01 7:28 PM, Mic wrote:
   Hi,
  
   I have got the following error with the following code:
   /$ python mpl.py/ http://mpl.py/
   /Traceback (most recent call last):/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtk.py,
   line 398, in expose_event/
   /self._render_figure(self._pixmap, w, h)/
   /  File
  
 
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py,
   line 75, in _render_figure/
   /FigureCanvasAgg.draw(self)/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 416, in draw/
   /self.renderer = self.get_renderer()/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 435, in get_renderer/
   /self.renderer = RendererAgg(w, h, self.figure.dpi)/
   /  File
  
 /usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py,
   line 72, in __init__/
   /self._renderer = _RendererAgg(int(width), int(height), dpi,
   debug=False)/
   /ValueError: width and height must each be below 32768/
   /The program 'mpl.py' received an X Window System error./
   /This probably reflects a bug in the program./
   /The error was 'BadAlloc (insufficient resources for operation)'./
   /  (Details: serial 486 error_code 11 request_code 53 minor_code 0)/
   /  (Note to programmers: normally, X errors are reported
 asynchronously;/
   /   that is, you will receive the error a while after causing it./
   /   To debug your program, run it with the --sync command line/
   /   option to change this behavior. You can then get a meaningful/
   /   backtrace from your debugger if you break on the gdk_x_error()
   function.)/
  
   With the following code:
   /import random /
   /import matplotlib.pyplot as plt /
   //
   /coverages = [random.randint(1,10)*2] * 4605 /
   /contig_names = ['AAB0008r'] * len(coverages) /
   /# Set the figure size /
   /#fig = plt.figure(1, [20, 2]) /
   /fig = plt.figure(figsize=(int(len(coverages)*0.1), 4)) /
   //
   /ax = fig.add_subplot(111) /
   //
   /# Set the x-axis limit /
   /#ax.set_xlim(-1,100) /
   /ax.set_xlim(0,len(coverages)) /
   /#ax.set_ylim(0,3) /
   /ax.yaxis.grid(True, linestyle='-', which='major', color='grey',
   alpha=0.5) /
   //
   /ind = range(len(coverages)) /
   /rects = ax.bar(ind, coverages, width=0.1, align='center',
   color='thistle') /
   /ax.set_xticks(ind) /
   /#ax.set_xticklabels(contig_names)/
   /#ax.tick_params(axis='both', which='major', labelsize=10)/
   /#ax.tick_params(axis='both', which='minor', labelsize=8)/
   /
   /
   /
   /
   /#function to auto-rotate the x axis labels/
   /fig.autofmt_xdate()/
   /plt.setp(ax.get_xticklabels(), fontsize=8, rotation='vertical')/
   /plt.show()/
  
   How is it possible to get big charts?

 It looks like you are trying to make a figure that is 460 inches by 4
 inches.  How do you expect to display or print it?  I think displaying
 it is out of the question, so you would need to use a non-interactive
 backend.  I don't know whether ps or pdf can handle those sorts of
 dimensions.

 Eric

  
   Thank you in advance.

If you have that much data, a bar chart is probably not the way to go.
Maybe try taking the height of what would be each bar and using that
as a y-coordinate array then call plt.plot(y)? You'll get a line plot,
and the x axis may not make a huge amount of sense, but at least
you'll see all your data.

Or, perhaps even a histogram?

It's hard to advise without knowing your application, but that should
help at least a little. Good luck!

Best wishes,
Damon

-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom

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