Sorry, not following...try value how?
On Tuesday, July 1, 2014 9:40:46 PM UTC-4, Isaiah wrote: > > Try "value..." > > > On Tue, Jul 1, 2014 at 9:37 PM, Randy Zwitch <[email protected] > <javascript:>> wrote: > >> I have a data frame where the year, month, day, hour, etc. are in >> different columns. I want to use Datetime.jl to make timestamps, then do >> some processing. >> >> I tried to attack the problem like the following (which is to say, >> Python-style), but it didn't work: >> >> test[:start_date] = [datetime(year,month,day) for year,month,day in >> zip(test[:Year], test[:Month], test[:DayofMonth])] >> >> The working solution: >> >> test[:start_date] = [datetime(value[1],value[2],value[3]) for value in >> zip(test[:Year], test[:Month], test[:DayofMonth])] >> >> I was somewhat surprised that I had to reference the fields in the tuple >> by position, when syntax like a,b,c = (1,2,3) works elsewhere. Is there >> something I'm missing/forgetting? Is there a better way to use multiple >> columns from a data frame in a function to return a new column in the data >> frame? >> > >
