[R-sig-phylo] GC content in light of nuclear polymorphisms

Good day all, I notice that the GC.content() function from the ape library discards both missing and 'unknown' sites from the calculation of percentage GC. I assume that 'unknown' sites refers to any base coded with the IUPAC codes (e.g. R,Y, W etc.). I have a nuclear dataset with 'known'

Re: [R-sig-phylo] GC content in light of nuclear polymorphisms

Hi Alastair, On 2/2/11, Alastair Potts pott...@gmail.com wrote: Good day all, I notice that the GC.content() function from the ape library discards both missing and 'unknown' sites from the calculation of percentage GC. I assume that 'unknown' sites refers to any base coded with the IUPAC