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I have created a python program that uses matplotlib to plot data and it had been working fine until today, an error occured. The program uses AutoDateLocator and ConciseDateFormatter. As you can see in the last line of the error log below, the received error is:
> IndexError: too many indices for array: array is 1-dimensional, but 2 were indexed
Since it would be really difficult to post more details about my program functionality as well as the data used, I was wondering if there is an obvious solution to the above-mentioned problem, or if you could guide me to where I should look for the problem.
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\tkinter_init_.py", line 1883,
in call
return self.func(*args)
File "C:\Users\Nick\Desktop\Uni\TUC
studies\thesis\Code\python\test\myGUI_V3.py", line 841, in plotMeas
fig.tight_layout()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\cbook\deprecation.py",
line 411, in
wrapper
return func(*inner_args, **inner_kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py",
line 2613, in tight_layout
kwargs = get_tight_layout_figure(
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\tight_layout.py",
line 303, in get_tight_layout_figure
kwargs = auto_adjust_subplotpars(fig, renderer,
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\tight_layout.py",
line 84, in
auto_adjust_subplotpars
bb += [ax.get_tightbbox(renderer, for_layout_only=True)]
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axes_base.py",
line 4155, in
get_tightbbox
bb_xaxis = self.xaxis.get_tightbbox(
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1109, in get_tightbbox
ticks_to_draw = self._update_ticks()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1030, in _update_ticks
minor_labels = self.minor.formatter.format_ticks(minor_locs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\dates.py", line
797, in format_ticks
if len(np.unique(tickdate[:, level])) > 1:
IndexError: too many indices for array: array is 1-dimensional, but 2
were indexed
Traceback (most recent call last):
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py",
line 480, in
_draw_idle
self.draw()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py",
line 407, in draw
self.figure.draw(self.renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py",
line 1863, in draw
mimage._draw_list_compositing_images(
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line
131, in
_draw_list_compositing_images
a.draw(renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\cbook\deprecation.py",
line 411, in wrapper
return func(*inner_args, **inner_kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axes_base.py",
line 2747, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line
131, in
_draw_list_compositing_images
a.draw(renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1164, in draw
ticks_to_draw = self._update_ticks()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1030, in _update_ticks
minor_labels = self.minor.formatter.format_ticks(minor_locs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\dates.py", line
797, in format_ticks
if len(np.unique(tickdate[:, level])) > 1:
IndexError: too many indices for array: array is 1-dimensional, but 2
were indexed
Traceback (most recent call last):
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py",
line 480, in
_draw_idle
self.draw()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py",
line 407, in draw
self.figure.draw(self.renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\figure.py",
line 1863, in draw
mimage._draw_list_compositing_images(
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line
131, in
_draw_list_compositing_images
a.draw(renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\cbook\deprecation.py",
line 411, in wrapper
return func(*inner_args, **inner_kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axes_base.py",
line 2747, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\image.py", line
131, in
_draw_list_compositing_images
a.draw(renderer)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\artist.py",
line 41, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1164, in draw
ticks_to_draw = self._update_ticks()
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\axis.py", line
1030, in _update_ticks
minor_labels = self.minor.formatter.format_ticks(minor_locs)
File
"C:\ProgramData\Anaconda3\lib\site-packages\matplotlib\dates.py", line
797, in format_ticks
if len(np.unique(tickdate[:, level])) > 1:
IndexError: too many indices for array: array is 1-dimensional, but 2
were indexed
As it turns out, it was a problem of the setup of the AutoDateLocator. Because of the specific dataset, the minor ticks could not be set correctly, based on the values I had selected for minticks, maxticks, and for the intervald tuples chosen. As a result, when the ConciseDateFormatter tried to use the locator for the minor ticks, the above-mentioned error occured.
When used a simple DateFormatter, there was no error, but neither the minor ticks, nor their labels appeared on the plot.
I'm making a realtime audio visualizer in python with pyaudio and using matplotlib to plot a graph. When the code reaches the line shown in the code it gives a Value Error: shape mismatch: objects cannot be broadcast to a single shape. and also says there was an Exception in Tkinter callback. I've tried looking everywhere but I couldn't find anything about this. Also when I remove the line that is causing that error, the code works just fine. Any idea how this can be fixed?
Code:
p = pyaudio.PyAudio()
stream = p.open(format=pyaudio.paInt16,
channels=channelcount,
rate=int(device_info["defaultSampleRate"]),
input=True,
frames_per_buffer=defaultframes,
input_device_index=device_info["index"],
as_loopback=True)
fig, (ax, ax2) = plt.subplots(2, figsize=(15, 8))
x = np.arange(0, 2 * CHUNK, 2)
x_fft = np.linspace(0, device_info["defaultSampleRate"], CHUNK)
line, = ax.plot(x, np.random.rand(CHUNK), '-', lw=2)
line_fft, = ax2.semilogx(x_fft, np.random.rand(CHUNK), '-', lw=2)
offset = 2000
ax.set_ylim(0, offset)
ax.set_xlim(0, 2 * CHUNK)
plt.setp(ax, xticks=[0, CHUNK, 2 * CHUNK], yticks=[0, 128, 255])
ax2.set_xlim(20, device_info["defaultSampleRate"] / 2)
ax2.set_ylim(0, 20)
fig.show()
while True:
data = stream.read(CHUNK)
data_int = struct.unpack(str(2 * CHUNK) + 'h', data)
line.set_ydata(np.array(data_int)) <------------------------------- ERROR HAPPENS HERE
y_fft = fft(data_int)
line_fft.set_ydata(np.abs(y_fft[0:CHUNK]) * 2 / (256 * CHUNK))
fig.canvas.draw()
fig.canvas.flush_events()
Error:
Traceback (most recent call last):
File "E:\Python\lib\tkinter\__init__.py", line 1705, in __call__
return self.func(*args)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\_backend_tk.py", line 259, in resize
self.draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 9, in draw
super(FigureCanvasTkAgg, self).draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_agg.py", line 393, in draw
self.figure.draw(self.renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\figure.py", line 1736, in draw
renderer, self, artists, self.suppressComposite)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\axes\_base.py", line 2630, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 759, in draw
self.recache()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 679, in recache
self._xy = np.column_stack(np.broadcast_arrays(x, y)).astype(float)
File "<__array_function__ internals>", line 6, in broadcast_arrays
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 264, in broadcast_arrays
shape = _broadcast_shape(*args)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 191, in _broadcast_shape
b = np.broadcast(*args[:32])
ValueError: shape mismatch: objects cannot be broadcast to a single shape
Exception in Tkinter callback
Traceback (most recent call last):
File "E:\Python\lib\tkinter\__init__.py", line 1705, in __call__
return self.func(*args)
File "E:\Python\lib\tkinter\__init__.py", line 749, in callit
func(*args)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\_backend_tk.py", line 270, in idle_draw
self.draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 9, in draw
super(FigureCanvasTkAgg, self).draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_agg.py", line 393, in draw
self.figure.draw(self.renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\figure.py", line 1736, in draw
renderer, self, artists, self.suppressComposite)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\axes\_base.py", line 2630, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 759, in draw
self.recache()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 679, in recache
self._xy = np.column_stack(np.broadcast_arrays(x, y)).astype(float)
File "<__array_function__ internals>", line 6, in broadcast_arrays
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 264, in broadcast_arrays
shape = _broadcast_shape(*args)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 191, in _broadcast_shape
b = np.broadcast(*args[:32])
ValueError: shape mismatch: objects cannot be broadcast to a single shape
Traceback (most recent call last):
File "E:/PycharmProjects/LedProject/test3.py", line 112, in <module>
fig.canvas.draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 9, in draw
super(FigureCanvasTkAgg, self).draw()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\backends\backend_agg.py", line 393, in draw
self.figure.draw(self.renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\figure.py", line 1736, in draw
renderer, self, artists, self.suppressComposite)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\axes\_base.py", line 2630, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\image.py", line 137, in _draw_list_compositing_images
a.draw(renderer)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 759, in draw
self.recache()
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\matplotlib\lines.py", line 679, in recache
self._xy = np.column_stack(np.broadcast_arrays(x, y)).astype(float)
File "<__array_function__ internals>", line 6, in broadcast_arrays
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 264, in broadcast_arrays
shape = _broadcast_shape(*args)
File "E:\PycharmProjects\LedProject\venv\lib\site-packages\numpy\lib\stride_tricks.py", line 191, in _broadcast_shape
b = np.broadcast(*args[:32])
ValueError: shape mismatch: objects cannot be broadcast to a single shape```
I am plotting a barplot using the seaborn.barplot method. The plotting is going through fine. When I am trying to add text on above the bars for better explanation using text method I am running into above mentioned issue.
Below is the code I have tried. With this code I am getting plot like this but i need plot like
this
where values displayed at top of bar are the raised_amount_in_millions value
Here is my code
groupedvalues=master_frame_backup1.groupby('funding_round_type')['raised_amount_in_millions'].mean().reset_index()
#groupedvalues
plt.figure(figsize=(30,8))
pal = sns.color_palette("Greens_d", len(groupedvalues))
rank = groupedvalues["raised_amount_in_millions"].argsort().argsort()
g=sns.barplot(x='funding_round_type',y='raised_amount_in_millions',data=groupedvalues, palette=np.array(pal[::-1])[rank])
for index, row in groupedvalues.iterrows():
g.text(row.funding_round_type, row.raised_amount_in_millions," "+str(row.raised_amount_in_millions), color='black', ha="center")
plt.show()
But I am running into above mentioned error. Any help?
Here is the error stack
Here is the error stack
Error in callback .post_execute at 0x00000211F5EB2378> (for post_execute):
Traceback (most recent call last):
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\pyplot.py", line 109, in post_execute
draw_all()
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib_pylab_helpers.py", line 132, in draw_all
f_mgr.canvas.draw_idle()
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\backend_bases.py", line 1899, in draw_idle
self.draw(*args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
self.figure.draw(self.renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\figure.py", line 1649, in draw
renderer, self, artists, self.suppressComposite)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\axes_base.py", line 2610, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 709, in draw
bbox, info, descent = textobj._get_layout(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 286, in _get_layout
key = self.get_prop_tup(renderer=renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 871, in get_prop_tup
x, y = self.get_unitless_position()
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 853, in get_unitless_position
x = float(self.convert_xunits(self._x))
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 186, in convert_xunits
return ax.xaxis.convert_units(x)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\axis.py", line 1530, in convert_units
ret = self.converter.convert(x, self.units, self)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\category.py", line 53, in convert
unit.update(values)
AttributeError: 'NoneType' object has no attribute 'update'
Traceback (most recent call last):
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\IPython\core\formatters.py", line 341, in call
return printer(obj)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\IPython\core\pylabtools.py", line 244, in
png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\IPython\core\pylabtools.py", line 128, in print_figure
fig.canvas.print_figure(bytes_io, **kw)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\backend_bases.py", line 2049, in print_figure
**kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 510, in print_png
FigureCanvasAgg.draw(self)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py", line 402, in draw
self.figure.draw(self.renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\figure.py", line 1649, in draw
renderer, self, artists, self.suppressComposite)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\axes_base.py", line 2610, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\image.py", line 138, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 50, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 709, in draw
bbox, info, descent = textobj._get_layout(renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 286, in _get_layout
key = self.get_prop_tup(renderer=renderer)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 871, in get_prop_tup
x, y = self.get_unitless_position()
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\text.py", line 853, in get_unitless_position
x = float(self.convert_xunits(self._x))
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\artist.py", line 186, in convert_xunits
return ax.xaxis.convert_units(x)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\axis.py", line 1530, in convert_units
ret = self.converter.convert(x, self.units, self)
File "C:\Users\mmajgaon.ORADEV\AppData\Local\Continuum\anaconda3\lib\site-packages\matplotlib\category.py", line 53, in convert
unit.update(values)
AttributeError: 'NoneType' object has no attribute 'update'
I have a file containing data as below. you see the first column is dates. I need to plot all other columns against dates in the first column. I tried to use the code below but I receive an error message. the code an error are provided.
Data
2010-01-01,1.628,0.7063157895,0,0.9216842105
2010-01-03,1.602631579,0.6901052632,0,0.9125263158
2010-01-04,1.5818947369,0.6775789474,0,0.9043157895
2010-01-05,1.5755789473,0.6716842105,0,0.9038947368
2010-01-06,1.5605263158,0.6622105263,0,0.8983157895
2010-01-07,1.5611578948,0.6608421053,0,0.9003157895
2010-01-08,1.5598947369,0.6593684211,0,0.9005263158
2010-01-09,1.5576842105,0.6569473684,0,0.9007368421
2010-01-10,1.5462105263,0.6543157895,0,0.8918947368
2010-01-11,1.5656842105,0.6666315789,0,0.8990526316
2010-01-12,1.5517894736,0.6546315789,0,0.8971578947
2010-01-13,1.5558947368,0.6551578947,0,0.9007368421
2010-01-14,1.5638947369,0.6588421053,0,0.9050526316
2010-01-15,1.5375789474,0.6432631579,0,0.8943157895
2010-01-16,1.522631579,0.6352631579,0,0.8873684211
2010-01-17,1.5056842105,0.6254736842,0,0.8802105263
2010-01-18,1.4881052632,0.6157894737,0,0.8723157895
2010-01-19,1.4889842789,0.6251948052,0,0.8637894737
2010-01-20,1.4733383459,0.6182857143,0,0.8550526316
2010-01-21,1.4507368421,0.6009473684,0,0.8497894737
Code
import csv
import datetime as dt
import matplotlib.pyplot as plt
lis1=[]
lis2=[]
lis3=[]
lis4=[]
lis5=[]
with open('/home/omar/Desktop/finall.csv', 'rU') as f:
reader=csv.reader(f, delimiter=',')
for row in reader:
lis1.append(dt.datetime.strptime(row[0],'%Y-%m-%d'))
lis2.append(row[1])
lis3.append(row[2])
lis4.append(row[3])
lis5.append(row[4])
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(lis1,lis2,lis3,lis4,lis5,'o-')
fig.autofmt_xdate()
plt.show()
Error
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/spyderlib/widge/externalshell/sitecustomize.py", line 540, in runfile execfile(filename, namespace)
File "/home/omar/python/plot_txt.py", line 37, in <module>
fig.autofmt_xdate()
File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 431, in autofmt_xdate
for label in self.axes[0].get_xticklabels():
File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 2614, in get_xticklabels
self.xaxis.get_ticklabels(minor=minor))
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1161, in get_ticklabels
return self.get_majorticklabels()
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1145, in get_majorticklabels
ticks = self.get_major_ticks()
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1244, in get_major_ticks
numticks = len(self.get_major_locator()())
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 802, in __call__
self.refresh()
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 819, in refresh
dmin, dmax = self.viewlim_to_dt()
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 564, in viewlim_to_dt
return num2date(vmin, self.tz), num2date(vmax, self.tz)
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 311, in num2date
return _from_ordinalf(x, tz)
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 214, in _from_ordinalf
dt = datetime.datetime.fromordinal(ix)
ValueError: ordinal must be >= 1
>>> Traceback (most recent call last):
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_qt4.py", line 374, in idle_draw
self.draw()
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_qt4agg.py", line 154, in draw
FigureCanvasAgg.draw(self)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py", line 451, in draw
self.figure.draw(self.renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1034, in draw
func(*args)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 2086, in draw
a.draw(renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1091, in draw ticks_to_draw = self._update_ticks(renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 945, in _update_ticks
tick_tups = [t for t in self.iter_ticks()]
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 889, in iter_ticks
majorLocs = self.major.locator()
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 802, in __call__
self.refresh()
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 819, in refresh
dmin, dmax = self.viewlim_to_dt()
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 564, in viewlim_to_dt
return num2date(vmin, self.tz), num2date(vmax, self.tz)
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 311, in num2date
return _from_ordinalf(x, tz)
File "/usr/lib/pymodules/python2.7/matplotlib/dates.py", line 214, in _from_ordinalf
dt = datetime.datetime.fromordinal(ix)
ValueError: ordinal must be >= 1
The error is in your plot command.
You need to repeat what is on the x axis for each field you plot on the y axis.
So change this:
ax.plot(lis1,lis2,lis3,lis4,lis5,'o-')
to this:
ax.plot(lis1,lis2,lis1,lis3,lis1,lis4,lis1,lis5,'o-')
try:
import csv
import datetime as dt
import matplotlib.pyplot as plt
lis1=[]
lis2=[]
lis3=[]
lis4=[]
lis5=[]
with open('/home/omar/Desktop/finall.csv', 'rU') as f:
reader=csv.reader(f, delimiter=',')
for row in reader:
lis1.append(dt.datetime.strptime(row[0],'%Y-%m-%d'))
lis2.append(row[1])
lis3.append(row[2])
lis4.append(row[3])
lis5.append(row[4])
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot_date(lis1,lis2,'o-',
lis1,lis3,'o-',
lis1,lis4,'o-',
lis1,lis5,'o-')
plt.show()
see documentation here: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.plot
I am currently dealing with an inexplicable bug in python+matplotlib+numpy. I'm under Ubuntu 13.04 x64 in a VirtualBox hosted by Windows 7 pro x64 and I use python 2.7 (installed from the Ubuntu repositories).
Consider the following script that plots y as a function of x from a two column file named data.txt :
#!/usr/bin/env python
import numpy as np
import matplotlib as mpl
mpl.rcParams['text.usetex']=True
import matplotlib.pyplot as plt
x, y = np.loadtxt("data.txt", unpack=True)
plt.plot(x, y)
plt.show()
And consider the following data.txt :
-49.5938 2.0
-40.6585 0.156267
-39.7351 0.0616373
-39.1767 0.00565121
-38.7736 -0.0346863
-38.4573 -0.0664897
-38.1965 -0.0929013
-37.9744 -0.115588
-37.7809 -0.135542
-37.6093 -0.153403
-37.4551 -0.169605
-37.3151 -0.18446
-37.1868 -0.198198
-37.0684 -0.210994
-36.9584 -0.222983
-36.8722 -0.232458
-36.8228 -0.237918
-36.7749 -0.243232
-36.7284 -0.248409
-36.6833 -0.253457
-36.6395 -0.258382
-36.5968 -0.263192
-36.5553 -0.267892
-36.5149 -0.272489
-36.4754 -0.276987
-36.437 -0.281392
-36.3994 -0.285707
-36.3628 -0.289937
-36.3269 -0.294086
-36.2919 -0.298157
-36.2577 -0.302154
-36.2241 -0.30608
-36.1913 -0.309937
-36.1591 -0.313729
-36.1276 -0.317458
-36.0966 -0.321126
-36.0663 -0.324736
-36.0366 -0.32829
-36.0074 -0.33179
-35.9787 -0.335238
-35.9505 -0.338635
-35.9228 -0.341984
-35.8956 -0.345286
-35.8688 -0.348542
-35.8425 -0.351755
-35.8166 -0.354925
-35.7912 -0.358053
-35.7661 -0.361142
-35.7414 -0.364192
-35.7171 -0.367205
-35.6931 -0.37018
-35.6695 -0.373121
-35.6463 -0.376027
-35.6234 -0.378899
-35.6008 -0.381739
-35.5785 -0.384547
-35.5565 -0.387324
-35.5348 -0.390071
-35.5134 -0.392789
-35.4923 -0.395479
-35.4714 -0.39814
-35.4508 -0.400775
-35.4305 -0.403383
-35.4104 -0.405965
-35.3906 -0.408522
-35.371 -0.411054
-35.3517 -0.413563
-35.3326 -0.416047
-35.3137 -0.418509
-35.295 -0.420948
-35.2765 -0.423366
-35.2582 -0.425762
-35.2402 -0.428137
-35.2223 -0.430491
-35.2047 -0.432825
-35.1872 -0.43514
-35.1699 -0.437435
-35.1528 -0.439711
-35.1358 -0.44197
-35.119 -0.444212
-35.1024 -0.44644
-35.0859 -0.448658
-35.0694 -0.450878
-35.0529 -0.453105
-35.0363 -0.455341
-35.0195 -0.457613
-35.0024 -0.459933
-34.9849 -0.462312
-34.9669 -0.464766
-34.9483 -0.467309
-34.9292 -0.469936
-34.9092 -0.472681
-34.8886 -0.475519
-34.8672 -0.47848
-34.8449 -0.481569
-34.8219 -0.484767
-34.7982 -0.48807
-34.7739 -0.491477
-34.7491 -0.494958
-34.7241 -0.49848
-34.6992 -0.502011
-34.6742 -0.505551
-34.6495 -0.509079
-34.625 -0.512581
-34.6007 -0.516063
-34.5767 -0.519519
-34.553 -0.522941
-34.5296 -0.526332
-34.5065 -0.529692
-34.4837 -0.533017
-34.4612 -0.536311
-34.439 -0.539573
-34.4171 -0.542805
-34.3954 -0.546006
-34.374 -0.549176
-34.3529 -0.552316
-34.3321 -0.555427
-34.3115 -0.55851
-34.2912 -0.561564
-34.2711 -0.564591
-34.2512 -0.567592
-34.2316 -0.570566
-34.2121 -0.573515
-34.193 -0.576439
-34.174 -0.579339
-34.1552 -0.582214
-34.1367 -0.585066
-34.1183 -0.587895
-34.1002 -0.590701
-34.0822 -0.593485
-34.0644 -0.596248
-34.0468 -0.598989
-34.0294 -0.601709
-34.0122 -0.604409
-33.9951 -0.607089
-33.9783 -0.609748
-33.9615 -0.612389
-33.945 -0.615011
-33.9286 -0.617614
-33.9123 -0.620199
-33.8962 -0.622766
-33.8803 -0.625315
-33.8645 -0.627847
-33.8489 -0.630361
-33.8334 -0.632859
-33.818 -0.635341
-33.8028 -0.637806
-33.7877 -0.640256
-33.7727 -0.64269
-33.7579 -0.645108
-33.7432 -0.647511
-33.7286 -0.6499
-33.7141 -0.652274
-33.6998 -0.654634
-33.6856 -0.65698
-33.6714 -0.659315
-33.6574 -0.661635
-33.6435 -0.663947
-33.6297 -0.666249
-33.6159 -0.668547
-33.6022 -0.670835
-33.5885 -0.673127
-33.5749 -0.67542
-33.5612 -0.677726
-33.5475 -0.680025
-33.5338 -0.682341
-33.5201 -0.684666
-33.5062 -0.687017
-33.4923 -0.689387
-33.4782 -0.691796
-33.4639 -0.694247
-33.4494 -0.696723
-33.4347 -0.69924
-33.4199 -0.7018
-33.4047 -0.704414
-33.3893 -0.707087
-33.3737 -0.709791
-33.3578 -0.712549
-33.3418 -0.71534
-33.3255 -0.718181
-33.3091 -0.721056
-33.2924 -0.723999
-33.2755 -0.726975
-33.2585 -0.729988
-33.2412 -0.733045
-33.2237 -0.736152
-33.2061 -0.739295
-33.1884 -0.742461
-33.1706 -0.745656
-33.1525 -0.748904
-33.1344 -0.752172
-33.1162 -0.755459
-33.098 -0.758756
-33.0798 -0.762079
-33.0616 -0.765406
-33.0434 -0.768737
-33.0252 -0.772066
-33.0072 -0.775386
-32.9892 -0.778712
-32.9713 -0.78203
-32.9535 -0.785343
-32.9358 -0.788648
-32.9182 -0.791942
-32.9007 -0.795223
-32.8833 -0.798485
-32.8661 -0.801738
-32.8489 -0.804987
-32.8319 -0.808216
-32.8151 -0.811425
-32.7984 -0.814617
-32.7817 -0.817795
-32.7653 -0.82096
-32.7489 -0.824109
-32.7327 -0.82724
-32.7166 -0.830353
-32.7007 -0.833449
-32.6848 -0.83653
-32.6691 -0.839596
-32.6536 -0.842642
-32.6381 -0.845671
-32.6228 -0.848682
-32.6076 -0.85168
-32.5925 -0.854664
-32.5776 -0.857631
-32.5627 -0.860578
-32.548 -0.863512
-32.5334 -0.866433
-32.5189 -0.869332
-32.5046 -0.872219
-32.4903 -0.87509
-32.4761 -0.877949
-32.4621 -0.880793
-32.4481 -0.883619
-32.4343 -0.886435
-32.4205 -0.889237
-32.4069 -0.892021
-32.3934 -0.894796
-32.3799 -0.897551
-32.3666 -0.900292
-32.3534 -0.903023
-32.3402 -0.905737
-32.3272 -0.908445
-32.3142 -0.911134
-32.3013 -0.913813
-32.2885 -0.916482
-32.2759 -0.919132
-32.2633 -0.921769
-32.2507 -0.924401
-32.2383 -0.92702
-32.2259 -0.929628
-32.2136 -0.932223
-32.2015 -0.934805
-32.1893 -0.937376
-32.1773 -0.939932
-32.1654 -0.942481
-32.1535 -0.94502
-32.1417 -0.947543
-32.13 -0.950056
-32.1183 -0.95256
-32.1068 -0.955052
-32.0952 -0.957536
-32.0838 -0.960005
-32.0725 -0.962469
-32.0612 -0.964924
-32.0499 -0.967368
-32.0387 -0.969807
-32.0276 -0.972236
-32.0165 -0.974663
-32.0055 -0.977076
-31.9946 -0.979485
If I try to execute the script, I got the following error :
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1473, in __call__
return self.func(*args)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 276, in resize
self.show()
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 348, in draw
FigureCanvasAgg.draw(self)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py", line 440, in draw
self.figure.draw(self.renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1006, in draw
func(*args)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 2086, in draw
a.draw(renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 54, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1052, in draw
renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1001, in _get_tick_bboxes
extent = tick.label1.get_window_extent(renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 752, in get_window_extent
bbox, info = self._get_layout(self._renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 313, in _get_layout
ismath=ismath)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py", line 200, in get_text_width_height_descent
renderer=self)
File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 606, in get_text_width_height_descent
page = next(iter(dvi))
File "/usr/lib/pymodules/python2.7/matplotlib/dviread.py", line 71, in __iter__
have_page = self._read()
File "/usr/lib/pymodules/python2.7/matplotlib/dviread.py", line 126, in _read
byte = ord(self.file.read(1)[0])
IndexError: string index out of range
The interesting thing, is that :
If I replace the two last values of the file by -32.0 -1.0 it works
If I remove mpl.rcParams['text.usetex']=True it also works
I would be very happy if one have any explanation about that very bizarre problem.