[R] Coercing a dataframe column to datetime

[richard.kittler@amd.com]

I am trying to coerce a data frame column from character to datetime using strptime but keep getting an error because the length of the coerced object is always 9.  What am I doing wrong here:   

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> ds <- cbind(1:2, c("02/27/92 23:03:20", "02/27/92 22:29:56")); ds 
     [,1] [,2]               
[1,] "1"  "02/27/92 23:03:20"
[2,] "2"  "02/27/92 22:29:56"
>  
> q <- strptime(ds[,2], "%m/%d/%y %H:%M:%S"); q
[1] "1992-02-27 23:03:20" "1992-02-27 22:29:56"
> 
> ds[,2] <- q
Error in "[<-"(`*tmp*`, , 2, value = q) : number of items to replace is not a multiple of replacement length
> 
> length(q)
[1] 9

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--Rich

Richard Kittler 
AMD TDG
408-749-4099