jinx Isaiah :)
On Tue, Jul 1, 2014 at 9:51 PM, Isaiah Norton <[email protected]> wrote: > Regarding this: > > I was somewhat surprised that I had to reference the fields in the > tuple by position > > there are two ways to do it: > 1) `value...` will splat the arguments > 2) `[datetime(year,month,day) for (year,month,day) in zip(test[:Year], > test[:Month], test[:DayofMonth])]` will do what you want. (note the > parens around the second (year,month,day) > > > > > On Tue, Jul 1, 2014 at 9:44 PM, Randy Zwitch <[email protected]> > wrote: > >> 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]> >>> 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? >>>> >>> >>> >
