[R] x[0]: Can '0' be made an allowed index in R?

[Peter Dalgaard]

Doesn't sound like you got the point. x[-1] normally removes the first element. With 0-based indices, this cannot work.

- pd 

> On 22 Apr 2024, at 17:31 , Ebert,Timothy Aaron <tebert using ufl.edu> wrote:
> 
> You could have negative indices. There are two ways to do this.
> 1) provide a large offset.
> Offset <- 30
> for (i in -29 to 120) { print(df[i+Offset])}
> 
> 
> 2) use absolute values if all indices are negative.
> for (i in -200 to -1) {print(df[abs(i)])}
> 
> Tim
> 
> 
> 
> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Peter Dalgaard via R-help
> Sent: Monday, April 22, 2024 10:36 AM
> To: Rolf Turner <rolfturner using posteo.net>
> Cc: R help project <r-help using r-project.org>; Hans W <hwborchers using gmail.com>
> Subject: Re: [R] x[0]: Can '0' be made an allowed index in R?
> 
> [External Email]
> 
> Heh. Did anyone bring up negative indices yet?
> 
> -pd
> 
>> On 22 Apr 2024, at 10:46 , Rolf Turner <rolfturner using posteo.net> wrote:
>> 
>> 
>> See fortunes::fortune(36).
>> 
>> cheers,
>> 
>> Rolf Turner
>> 
>> --
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> 
> --
> Peter Dalgaard, Professor,
> Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> Phone: (+45)38153501
> Office: A 4.23
> Email: pd.mes using cbs.dk  Priv: PDalgd using gmail.com
> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> PLEASE do read the posting guide http://www.r-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd.mes using cbs.dk  Priv: PDalgd using gmail.com