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points
2011 Mar 30
6
Quick recode of -999 to NA in R
.... What's
the most efficient way to do this? Below is what I'm presently doing, which
is inefficient. Thanks,
Chris
dat0 <- read.table("time1.dat")
colnames(dat0) <- c("e1dq", "e1arcp", "e1dev", "s1prcp", "s1nrcp", "s1ints",
"a1gpar", "a1pias", "a1devt")
dat0[dat0$e1dq==-999.00000000,"e1dq"] <- NA
dat0[dat0$e1arcp==-999.00000000,"e1arcp"] <- NA
dat0[dat0$e1dev==-999.00000000,"e1dev"] <- NA
dat0[dat0$s1prcp==-999.00000000,"s1prcp"]...