Dear list,
For a reason it would take me long to explain, I need to do something along
the lines of what's shown below -- i.e., create an object from
dplyr::summarise, and then evaluate it on a data frame.
I know I could directly do:
df %>% dplyr::summarise(x1_mean = mean(x1))
but this is not what I'm looking for.
library(dplyr)
df <- data.frame(x1 = rnorm(100), x2 = rnorm(100))
foo <- function(df) {
mySummary <- quote(dplyr::summarise(x1_mean = mean(x1)))
df %>% eval(mySummary)
}
foo(df)
Error in eval(., mySummary) : invalid 'envir' argument of type 'language'
Thank you,
Axel.
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
