> * David Winsemius <qjvafrz...@pbzpnfg.arg> [2011-02-16 13:33:32 -0500]:
>
>> parse.num <- function (s) {
>> as.numeric(gsub("M$","e6",gsub("B$","e9",s))); }
>
> data[1] <- parse.num( data[[1]] ) # as.numeric and gsub are vectorized
because parse.num turned out to not be as simple as that: I need to
handle "N/A" specially.
parse.num1 <- function (s) {
if (length(s) != 1) stop("parse.num",s);
s <- as.character(s);
if (s == "N/A") return(NA);
as.numeric(gsub("M$","e6",gsub("B$","e9",s)));
}
parse.num <- function (v) {
for (i in 1:length(v)) v[[i]] <- parse.num1(v[[i]])
v;
}
actually... wait a sec...
shouldn't this work?
bad <- (data[1] == "N/A")
data[1][bad] <- NA
data[1][!bad] <- as.numeric(gsub("M$","e6",gsub("B$","e9",data[1])));
--
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