[datatable-help] Strange key behaviour with character string (involving spaces)

[Timothée Carayol]

Hi,

I noticed some unexpected behaviour:


> key(test) <- "Var1"
> test["a 1"]
     Var1 Var2
[1,]  a 1   NA
> test <- data.table(expand.grid(c(paste("a ", 1:10), "b"),1:10))
> key(test) <- "Var1"
> test["b"]
      Var1 Var2
 [1,]    b    1
 [2,]    b    2
 [3,]    b    3
 [4,]    b    4
 [5,]    b    5
 [6,]    b    6
 [7,]    b    7
 [8,]    b    8
 [9,]    b    9
[10,]    b   10
> test["a 1"]
     Var1 Var2
[1,]  a 1   NA
>


That is, subsetting a keyed data.table by a string that contains a
space seems to break it? Am I missing something?

Timothee