Hello all, I'm trying to select a column from a DataFrame using a
variable... something like this
df = DataFrame(A=[1:10], B=[11:20])
when i do this:
df [ : 2]
i select column B
if i do this:
t = 2
df [ : t]
i get an error
Error Key not found :t
what am i missing??
Thank you in advance
Hi Jason,
I’m surprised that df[: 2] works: that seems almost like a bug.
To get column B, either of the following should work on a new copy of
DataFrames:
df[2]
df[:B]
If you have a slightly older copy of DataFrames (like you’d get for Julia 0.2),
this works
df[2]
df[“B”]
Hope that helps.
