IDT <- data.table(iris)
vr <- "Species"
IDT[, virginca := get(vr) == "virginica"]
IDT[(virginca)][, .N, by = .(round(Sepal.Width), k = round(Sepal.Length), kar = get(vr))]
# Works fine
IDT[(virginca), .N, by = .(round(Sepal.Width), k = round(Sepal.Length), kar = get(vr))]
# Error in get(vr) : object 'Species' not found
This is the closest I could get to reproducing the error I got on data in the wild when I added a logical in i, but my actual error message was
column or expression 3 of 'by' or 'keyby' is type builtin. Do not quote column names. Usage: DT[,sum(colC),by=list(colA,month(colB))]
I'm using R 4.0.2 and data.table_1.13.4 on Windows 10.
Reactions are currently unavailable
This is the closest I could get to reproducing the error I got on data in the wild when I added a logical in i, but my actual error message was
I'm using R 4.0.2 and data.table_1.13.4 on Windows 10.