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October 31, 2017 08:43
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Using matplotlib example on top of Apache Zeppelin
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| %pyspark | |
| import matplotlib | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| import StringIO | |
| matplotlib.use('Agg') | |
| plt.rcdefaults() | |
| def show(p): | |
| img = StringIO.StringIO() | |
| p.savefig(img, format='svg') | |
| img.seek(0) | |
| print "%html <div style='width:600px'>" + img.buf + "</div>" | |
| x = np.linspace(-1,1,100) | |
| y = x * 2 | |
| plt.plot(x,y) | |
| show(plt) |
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Running this code I get this error :
Traceback (most recent call last):
File "/tmp/zeppelin_pyspark-5728297460444875606.py", line 367, in
raise Exception(traceback.format_exc())
Exception: Traceback (most recent call last):
File "/tmp/zeppelin_pyspark-5728297460444875606.py", line 355, in
exec(code, _zcUserQueryNameSpace)
File "", line 14, in
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 3147, in plot
ax = gca()
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 928, in gca
return gcf().gca(**kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 578, in gcf
return figure()
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 527, in figure
**kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 84, in new_figure_manager
return new_figure_manager_given_figure(num, figure)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 92, in new_figure_manager_given_figure
window = Tk.Tk()
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1818, in init
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
TclError: no display name and no $DISPLAY environment variable