Prabhu

Prabhu has asked 6 questions and find answers to 3 problems.

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About

I write codes for Java, Perl, Php, Python. I am interested about doing new things, and working on new problems. I am interested in data analysis and Machine learning.

Prabhu questions

Merge two arrays of different lengths with key and 0 fill on empty
R how to merge different columns of data frame in one
R column mean by factor
Pandas combining sparse columns in dataframe
Extract bz2 file in R
Pyspark create new column based on other column with multiple condition with list or set

Prabhu answers

AttributeError: 'dict' object has no attribute 'itervalues' [duplicate]
ERROR 1396 (HY000): Operation CREATE USER failed for 'username'@'localhost' IDENTIFIED BY 'mypassword';