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justinvf
  • Member for 13 years, 2 months
  • Last seen more than 8 years ago
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I am a contract programmer who can solve your algorithm and data analysis problems.

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question
277
How to filter rows in pandas by regex
Mar 10, 2013
question
8
Convertic non-numeric factor to numeric column with mapping in R
Jan 28, 2013
answer
7
What is the difference between 15 and 015?
Feb 22, 2013
answer
4
Sorting by multiple params in pyes and elasticsearch
Sep 27, 2012
answer
2
matplotlib won't draw python3
Jul 29, 2013
question
2
Cross Compile not finding references
Aug 31, 2014
answer
1
Cross Compile not finding references
Aug 31, 2014
answer
1
Does program really created the inner object each time?
Jun 12, 2013
question
1
Reduce array over ranges
Mar 3, 2015
answer
0
Efficient substring search in a large text file containing 100 millions strings(no duplicate string)
Feb 1, 2013