Remove a suffix to a value of a data frame

Question

I have a data frame done this way:

 a       b         c
--------------------------------
 1     2011     mal ID9     
 2     2012     yesterday ID10 
 3              


        

Answer 1

This should work

    z$c=gsub(" ID.*","",z$c)

Answer 2

You can try something like this:

z %>% mutate(c = gsub("\\sID\\d+$", "", c))

  a    b         c
1 1 2011       mal
2 2 2012 yesterday
3 3 2010     misch
4 4 1995       mal
5 5 2008        se
6 6 1998   falling
7 7 2011    friend
8 8 2011 use to be