Hello together,
i have probably a easy question, but how can i sum 2 data.frames among each
other.
I have 2 data.frames which look like this one:
Cu.No. place level
1 123 London A
2 111 Paris B
Cu.No. place level
1 333 Berlin C
2 444 Madrid A
and now i want this data in the same data.frame. like this one:
Cu.No. place level
1 123 London A
2 111 Paris B
3 333 Berlin C
4 444 Madrid A
how can i do this.
Thanks.
Mat
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