Displaying 1 result from an estimated 1 matches for "day_birth".
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date_birth
2011 Nov 03
2
query about counting rows of a dataframe
Dear R users,
I have got the following data frame, called my_df:
gender day_birth month_birth year_birth labour
1 F 22 10 2001 1
2 M 29 10 2001 2
3 M 1 11 2001 1
4 F 3...