Warum bekomme ich diesen Fehler, wenn alle meine Typen numerisch zu sein scheinen?R "Fehler in Density.default (roh): Argument 'x' muss numerisch sein" in data.frame mit allen int-Werten
> str(raw)
'data.frame': 404166147 obs. of 8 variables:
$ piece_1_A : int 0 0 0 0 0 0 0 0 0 0 ...
$ piece_1_B : int 0 0 0 0 0 0 0 0 0 0 ...
$ piece_2_A : int 0 0 0 0 0 0 0 0 0 0 ...
$ piece_2_B : int 0 0 0 0 0 0 0 0 0 0 ...
$ item_1_A : int 0 0 0 0 0 0 0 0 0 0 ...
$ item_1_B : int 0 0 0 0 0 0 0 0 0 0 ...
$ piece_2_A: int 0 0 0 0 0 0 0 0 0 0 ...
$ piece_2_B: int 0 0 0 0 0 0 0 0 0 0 ...
> sapply(raw, typeof)
item_1_A item_1_B item_2_A item_2_B piece_1_A piece_1_B piece_2_A
"integer" "integer" "integer" "integer" "integer" "integer" "integer"
piece_2_B
"integer"
> density(raw[,1])
Error in density.default(raw[, 1]) : argument 'x' must be numeric