[Rd] Estimating overdispersion when using glm for count and binomial data

Dear All I recently proposed a simple modification to Wedderburn's 1974 estimate of overdispersion for count and binomial data, which is used in glm for the quasipoisson and quasibinomial families (see the reference below). Although my motivation for the modification arose from considering s

[Rd] system2() shortens R.home() to 8.3 form on windows

Hi, So in an interactive R session, R.home() returns the following: > R.home() [1] "D:/biocbld/bbs-3.2-bioc/R" However, if I call it from system2(), I get different results: > system2("R", "-q -e R.home()") > R.home() [1] "D:/biocbld/BBS-3~1.2-B/R" Similarly: > system2("R", "-q -e Sys.getenv(

Re: [Rd] Improving string concatenation

On 2015-06-17 20:24, Joshua Bradley wrote: How would this new '+' deal with factors, as paste does or as the current '+' does? Would number+string and string+number cause errors (as in current '+' in R and python) or coerce both to strings (as in current R:paste and in perl's '+'). I had p