Re: [R] How to delete rows

2005-07-27 Thread Barry Rowlingson
Michael Graber wrote: > Dear R-users, > > I am very new to R, so maybe my question is very easy to answer. > I have the following table: > TAB1<-data.frame(Name,Number), "Name" and "Number" are all character > strings, > it looks like this: > > Name Number > > ab 2 > [etc] > gh 1

Re: [R] How to delete rows

2005-07-27 Thread Prof Brian Ripley
To delete duplicate rows, use unique(TAB1): see its help page. It looks to me as if the names are missing values NA and *not* start with NA. If so, you want to use TAB1[!is.na(TAB1$Name), ] Otherwise, perhaps TAB1[substr(TAB1$Name, 1, 2) == "NA", ]. On Wed, 27 Jul 2005, Michael Graber wrote:

[R] How to delete rows

2005-07-27 Thread Michael Graber
Dear R-users, I am very new to R, so maybe my question is very easy to answer. I have the following table: TAB1<-data.frame(Name,Number), "Name" and "Number" are all character strings, it looks like this: Name Number ab 2 ab 2 NA 15 NA 15 NA 15 cd 3 ef 1