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mohanmb91
Posts: 12
Posted 17:02 Jan 26, 2016 |

2 pts Copy all columns with empty values and replace all empty numeric fields with the average of its column in this new column.

As far as I have seen i couldn't find any empty  or NAN values in numeric fields from the given dataset. but there are lot of zero's so should i replace the zero's with the average of its column  while creating new column. 
And for average if i do mean() the values are becoming float so should I again convert it into integer's ?? 

 

 

 

msargent
Posts: 519
Posted 20:05 Jan 26, 2016 |

You can replace the zeroes if you want; it would probably produce better results. Use the median, to avoid skewing by outliers.