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2006 Mar 07
3
Applying strptime() to a data set or array
I'm sure this is just the result of a basic misunderstanding of the
syntax of R, but I am stumped.
A <-
read.table(file="sumByThirtyMinute.csv",sep=",",col.names=c("date","pandl"))
A now consists of thousands of rows, but A$date is a string...
...
3183 2006-02-28 12:00:00 548.470
3184 2006-02-28 12:30:00 515.240
3185 2006-02-28 13:00:00 140.120
3186 2006-02-28 13:30:00 450.940
3187 2006-02-28 14:00:00 318.570
...
So, I try to convert A$date to a PO...