Try this:
sapply(intvl.period.myrs, sum)
On Tue, May 17, 2011 at 1:13 PM, Martin Hughes <m.hug...@bath.ac.uk> wrote:
>
>
> Dear R users
>
> I have a list, as follows:
>
>> intvl.period.myrs
>
> $Devonian
> [1] 4.8 4.2 9.5 5.7
>
> $Ordovician
> [1] 7.2 5.1 10.2 1.9
>
> $Silurian
> [1] 4.7 3.0 7.8 2.0 3.3 1.6 2.6 2.7
>
>
> I want to write a loop that will sum up the values in each part, and give me
> a
> vector containing the (in this case 3) summed values
>
> this is what I have so far:
>
> for (i in 1:length(names(intvl.periods.myrs)) {
> my.new.vector<-sum(intvl.periods.myrs[i] }
>
> This does not work and probably for obvious reasons.
>
> Thanks
> Martin
>
>
>
>
>
>
> --
> Martin Hughes
> MPhil/PhD Research in Biology
> Rm 1.07, 4south
> University of Bath
> Department of Biology and Biochemistry
> Claverton
> Bath BA2 7AY
> Tel: 01225 385 437
> m.hug...@bath.ac.uk
> http://www.bath.ac.uk/bio-sci/biodiversity-lab/hughes.html
>
> ______________________________________________
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>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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