Wrong behaviour DT[, i, with=FALSE]

[cguill95]

Hi,

I noticed a strange type of behaviour using the with=FALSE parameter in a data table.
Maybe worth mentioning I am using data table version 1.10.4. on R 3.3.2

Here is a reproducible example;

library(data.table)
test <- data.table(mtcars)
i <- 3L

# Print 3rd column
test[, i, with=FALSE]

# Print 4th column
test[, i + 1L, with=FALSE]

# Print all but 3rd column
test[, i - 1L, with=FALSE]

[franknarf1]

Yeah, I guess it parses the expression, sees that - is the top-level function and wings it from there somehow, similar to this bug: #2069 Parentheses stop it: test[, (i - 1L), with=FALSE]

[arunsrinivasan]

IIUC this line would need a length(jsub) == 2L extra condition...