# NOT RUN {
limit <- 3.5
datasets::iris %.>%
mutate_nse(., Sepal_Long := Sepal.Length >= 2 * Sepal.Width,
Petal_Short := Petal.Length <= limit) %.>%
head(.)
# generates a warning
data.frame(x = 1, y = 2) %.>%
mutate_nse(., x = y, y = x)
# }
Run the code above in your browser using DataLab