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2010 Nov 29
2
drop levels problem
Hi all:
I am having trouble dropping levels, got a few hints online?without success.
Please consider the dataset below:
?I was under the inpression that subset(......drop=TRUE) would work but it
doesn't
library(ggplot2)
??? library(hmisc)
x <- structure(list(first = c(38.2086, 43.1768, 43.146, 41.8044, 42.4232,
46.3646, 38.0813, 40.0745, 40.4889, 38.6246, 40.2826, 41.6056,
34.5353, 40.0768), second = c(43.3295, 42.4326, 38.8994, 37...