Hi This now works - by *(df,:Col1,x->sum(x[:Col2])) - it was my fault as I left out a " in one of the headers in my txt file.* *Thanks*
On Sunday, February 22, 2015 at 8:06:59 PM UTC, pgs wrote: > Hi > Is it possible to summarize data in a data frame eg > > Col1 Col2 > A 2 > A 2.5 > B 7 > B 2 > > I would like sum Col2 grouping by Col1 - output would be > A , 4.5 > B,9 > > > Regards > > >
