Screen Link:
https://app.dataquest.io/m/143/multiple-plots/10/adding-a-legend
My Code:
fig = plt.figure(figsize=(10,6))
colors = ['red', 'blue', 'green', 'orange', 'black']
for i in range(5):
start_index = i*12
end_index = (i+1)*12
subset = unrate[start_index:end_index]
plt.plot(subset['MONTH'],subset['VALUE'],c=colors[i],label=subset['DATE'].dt.year)
plt.legend(loc='upper left')
plt.show()
What I expected to happen: It need to label the year of each plotted line and show the in the “plt.legend(loc=‘upper left’)” , although i have correct my code using "label=1948+i ", but i wanted to know what is the problem with using pandas.series.dt.year at that place , why it is showing this error?
What actually happened: It show the error :-
AttributeErrorTraceback (most recent call last)
<ipython-input-1-5a300a27923f> in <module>()
8
9 plt.legend(loc='upper left')
---> 10 plt.show()
/dataquest/system/env/python3/lib/python3.4/site-packages/matplotlib/pyplot.py in show(*args, **kw)
242 """
243 global _show
--> 244 return _show(*args, **kw)
245
246
/dataquest/system/libs/dq_matplotlib_backend.py in show(*args, **kw)
119 figures = []
120 for figure_manager in Gcf.get_all_fig_managers():
--> 121 figure_manager.canvas.draw()
122 figures.append(figure_manager.canvas.figure)
123
/dataquest/system/libs/dq_matplotlib_backend.py in draw(self)
191 record_hashes(
192 figure_manager.canvas.get_renderer().image_hash()
--> 193 for figure_manager in Gcf.get_all_fig_managers()
194 )
195
/dataquest/system/libs/dq_matplotlib_backend.py in record_hashes(hashes)
305 os.path.join(os.path.sep, "dataquest", "results", "image-hashes.lst"), "a"
306 ) as f:
--> 307 f.writelines(hash_ + "\n" for hash_ in hashes)
308
309
/dataquest/system/libs/dq_matplotlib_backend.py in <genexpr>(.0)
305 os.path.join(os.path.sep, "dataquest", "results", "image-hashes.lst"), "a"
306 ) as f:
--> 307 f.writelines(hash_ + "\n" for hash_ in hashes)
308
309
/dataquest/system/libs/dq_matplotlib_backend.py in <genexpr>(.0)
191 record_hashes(
192 figure_manager.canvas.get_renderer().image_hash()
--> 193 for figure_manager in Gcf.get_all_fig_managers()
194 )
195
/dataquest/system/libs/dq_matplotlib_backend.py in image_hash(self)
63
64 def image_hash(self):
---> 65 hash_ = image_hash(list(self._dq_log))
66 self._dq_log.clear()
67 return hash_
/dataquest/system/libs/dq_matplotlib_backend.py in image_hash(image_log)
298
299 def image_hash(image_log):
--> 300 return "dq-image-{}".format(hashobj(normalize(image_log)))
301
302
/dataquest/system/libs/dq_matplotlib_backend.py in normalize(log)
290
291 def normalize(log):
--> 292 return sorted({json.dumps(dict(Element(el)), sort_keys=True) for el in log})
293
294
/dataquest/system/libs/dq_matplotlib_backend.py in <setcomp>(.0)
290
291 def normalize(log):
--> 292 return sorted({json.dumps(dict(Element(el)), sort_keys=True) for el in log})
293
294
/dataquest/system/libs/dq_matplotlib_backend.py in __iter__(self)
224 for method in self.fields():
225 try:
--> 226 yield (method, getattr(self, method)())
227 except KeyError:
228 pass
/dataquest/system/libs/dq_matplotlib_backend.py in text(self)
256 def text(self):
257 mtext = self._getfield("text")
--> 258 return str(mtext.get_text())
259
260 def ismath(self):
AttributeError: 'NoneType' object has no attribute 'get_text'
.