Hey,
I have a dataset and I want to identify the records by groups for further
use in ggplot.
Here is a sample data:
ID Value
AL1 1
AL2 2
CA1 3
CA4 4
I want to identify all the records that in the same state (AL1 AND A2),
group them as "AL", and do the same for CA1 and CA4. How can I have an
output like:
ID Value State
AL1 1 AL
AL2 2 AL
CA1 3 CA
CA4 4 CA
Thanks for your help!
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