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? >
