def reshape(self, students, questions, scores, q_ratings=None):
self.df.reset_index(inplace=True)
if q_ratings != None:
self.q_ratings = pd.DataFrame(self.df.pivot_table(index=questions,
values=q_ratings))
self.q_ratings.columns= ['difficulty rating']
self.df = self.df.pivot_table(index=students, columns=questions,
values=scores)
object1.reshape(self.df['student_id'],self.df.index,self.df['score'],self.df['question_rating'])
On calling this function, the following error occurs :
File "C:\Users\sony\Anaconda2\lib\site-packages\pandas\core\generic.py",
line 731, in __nonzero__
.format(self.__class__.__name__))
ValueError: The truth value of a Series is ambiguous. Use a.empty,
a.bool(), a.item(), a.any() or a.all().
The value in dataframe is all in integers. It also have repetitive values
of index.
Attached : CSV data
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