Re: [R] substract start from the end of the vector

2010-04-23 Thread Chuck Cleland
with(df, substr(DESCRIPTION, start=1, stop=nchar(DESCRIPTION) - 10)) ?nchar On 4/23/2010 11:57 AM, arnaud Gaboury wrote: Dear group, Here is my df : df - structure(list(DESCRIPTION = c(PRM HGH GD ALUMINIUM USD 09/07/10 , PRM HGH GD ALUMINIUM USD 09/07/10 , PRIMARY NICKEL

Re: [R] substract start from the end of the vector

2010-04-23 Thread jim holtman
Use regular expressions: df$newDesc - sub((\\d+/\\d+/\\d file://d+///d+///d+), '', df$DESCRIPTION) df DESCRIPTION CREATED.DATE QUANITY CLOSING.PRICEnewDesc 1 PRM HGH GD ALUMINIUM USD 09/07/102020-04-09 -1 2,415.90 PRM HGH GD ALUMINIUM

Re: [R] substract start from the end of the vector

2010-04-23 Thread Steve Lianoglou
Hi, On Fri, Apr 23, 2010 at 11:57 AM, arnaud Gaboury arnaud.gabo...@gmail.com wrote: Dear group, Here is my df : df - structure(list(DESCRIPTION = c(PRM HGH GD ALUMINIUM USD 09/07/10 , PRM HGH GD ALUMINIUM USD 09/07/10 , PRIMARY NICKEL USD 04/06/10 ), CREATED.DATE = structure(c(18361,

Re: [R] substract start from the end of the vector

2010-04-23 Thread arnaud Gaboury
:11 PM To: arnaud Gaboury Cc: r-help@r-project.org Subject: Re: [R] substract start from the end of the vector Hi, On Fri, Apr 23, 2010 at 11:57 AM, arnaud Gaboury arnaud.gabo...@gmail.com wrote: Dear group, Here is my df : df - structure(list(DESCRIPTION = c(PRM HGH GD

Re: [R] substract start from the end of the vector

2010-04-23 Thread Steve Lianoglou
On Fri, Apr 23, 2010 at 12:28 PM, arnaud Gaboury arnaud.gabo...@gmail.com wrote: TY Steve, using regular expression does the job nicely. I need now to fully understand your code and learn more about what a regular expression is. Any good ref is welcome. Skimming through the help pages for