R help - Dec 2011 - RFE: vectorized behavior for as.POSIXct tz argument

x <- 1472562988 + 1:10; tz <- rep("EST",10)

# Case 1: Works as documented
ct <- as.POSIXct(x, tz=tz[1], origin="1960-01-01")

# Case 2: Fails
ct <- as.POSIXct(x, tz=tz, origin="1960-01-01")

If case 2 worked, it'd be a little easier to process paired (time, time
zone)
vectors from different time zones.

On Dec 2, 2011, at 2:28 PM, Jack Tanner wrote:
> x <- 1472562988 + 1:10; tz <- rep("EST",10)
>
> # Case 1: Works as documented
> ct <- as.POSIXct(x, tz=tz[1], origin="1960-01-01")
>
> # Case 2: Fails
> ct <- as.POSIXct(x, tz=tz, origin="1960-01-01")
sapply(tz, function(ttt) as.POSIXct(x=x, tz=ttt,  
origin="1960-01-01"),simplify=FALSE)
>
> If case 2 worked, it'd be a little easier to process paired (time,  
> time zone)
> vectors from different time zones.
>
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David Winsemius, MD
West Hartford, CT