Hi
I want to add dataframe A as a first column of dataframe of B.
so the first column of new dataframe will be IID
from A
how can I do that ? thank you in advance!
dataframe A
Row │ IID
│ Int64
──────┼───────────
1 │ 408610274
2 │ 409588054
3 │ 409894206
4 │ 410902281
5 │ 411257293
dataframe B
Row │ x1 x2 x3 x4 x5
│ Float64 Float64 Float64 Float64 Float64
─────┼─────────────────────────────────────────────
1 │ 1.0 1.0 2.0 1.0 0.0
2 │ 2.0 2.0 2.0 2.0 1.0
3 │ 1.0 2.0 1.0 1.0 0.0
4 │ 2.0 0.0 2.0 2.0 1.0
5 │ 2.0 2.0 1.0 2.0 1.0