John McKown
2014-Jul-30 17:08 UTC
is.na() == TRUE for POSIXlt time / date of "2014-03-09 02:00:00"
"I'm so confused!" Why does is.na() report TRUE for a POSIXlt date & time of 2014-03-09 02:00:00 ?> q[1] "2014-03-09 02:00:00"> is.na(q)[1] TRUE> as.POSIXct(q)[1] NA> dput(q)structure(list(sec = 0, min = 0L, hour = 2, mday = 9L, mon = 2L, year = 114L, wday = 0L, yday = 67L, isdst = 0L, zone = "", gmtoff = NA_integer_), .Names = c("sec", "min", "hour", "mday", "mon", "year", "wday", "yday", "isdst", "zone", "gmtoff"), class = c("POSIXlt", "POSIXt"))> str(q)POSIXlt[1:1], format: "2014-03-09 02:00:00">-- There is nothing more pleasant than traveling and meeting new people! Genghis Khan Maranatha! <>< John McKown