The data.csv need to be corrected:
1. Given following CSV file $cat data.csv ID,City,Zip,Price,Rating 1,A,95123,100,1 1,B,95124,102,2 1,A,95126,100,2 2,B,95123,200,1 2,B,95124,201,2 2,C,95124,203,1 3,A,95126,300,2 3,C,95124,280,1 4,C,95124,400,2 On Fri, Aug 26, 2016 at 4:54 AM, Rex X <dnsr...@gmail.com> wrote: > 1. Given following CSV file > > $cat data.csv > > ID,City,Zip,Price,Rating1,A,95123,100,01,B,95124,102,11,A,95126,100,12,B,95123,200,02,B,95124,201,12,C,95124,203,03,A,95126,300,13,C,95124,280,04,C,95124,400,1 > > > We want to group by ID, and make new composite columns of Price and Rating > based on the value of $City-$Zip. > > > 2. The Expected Result: > > > > > > > > > > > > > > > > ID > A_95123_Price > A_95123_Rating > A_95126_Price > A_95126_Rating > B_95123_Price > B_95123_Rating > B_95124_Price > B_95124_Rating > C_95124_Price > C_95124_Rating > > > 1 > 100 > 1 > 100 > 2 > 0 > 0 > 102 > 2 > 0 > 0 > > > 2 > 0 > 0 > 0 > 0 > 200 > 1 > 201 > 2 > 203 > 1 > > > 3 > 0 > 0 > 300 > 2 > 0 > 0 > 0 > 0 > 280 > 1 > > > 4 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 400 > 2 > > Any tips would be greatly appreciated! > > Thank you. > > Regards, > Rex > >
