Dear All, I have a dataframe which has a few thousand companies with unique
company numbers and names and each company has data for several years and each
year is stored in a separate row.
I want to get a total for the number of years of data for each company. When I
loop through the data with the following command I get a value of ‘1’ rather
than a total of the rows for each company
All_companies$count <-0
while All_companies$COMPANY_NAME == All_companies$COMPANY_NAME + 1
+ {All_companies$count=All_companies$count+1}
Can you kindly help me on this?
Ahson
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