Merge pull request #2 from lovecoding/master

Adding more code
What could be done file edited
Merge pull request #4 from lovecoding/master

Code Update
Merge pull request #3 from irvidileep/master

Text file edited
Added FormatFeatures

Two functions
 - Extract column
 - Replacing NULL with mean
Merge pull request #2 from asifmansoora/master

Getting Avg function