Re: [R] query about counting rows of a dataframe

2011-11-04 Thread David Winsemius
On Nov 3, 2011, at 12:28 PM, Stefano Sofia wrote: 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 M29 10

[R] query about counting rows of a dataframe

2011-11-03 Thread Stefano Sofia
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 M29 10 2001 2 3 M 1

Re: [R] query about counting rows of a dataframe

2011-11-03 Thread Jean V Adams
Stefano Sofia wrote on 11/03/2011 11:28:08 AM: 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 M29 10