Hello,
I am trying to pass a conditional expression into an expression to be
evaluated when ever an R statement is called. For example:
get_unique_count <- function(df, select, field){
uniqs <- unique(subset(df, select)[field])
return (nrow(uniqs))
}
In this case select is a conditional statement year == 1980, and the
function would be called in the following manner:
library(ggplot2)
get_unique_count(mpg, year==1980, 'manufacturer')
Thank for any help in advance,
-- Adam
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