-## DNA.R (2008-10-08)
+## DNA.R (2008-12-22)
## Manipulations and Comparisons of DNA Sequences
as.matrix = FALSE)
{
MODELS <- c("RAW", "JC69", "K80", "F81", "K81", "F84", "T92", "TN93",
- "GG95", "LOGDET", "BH87", "PARALIN")
+ "GG95", "LOGDET", "BH87", "PARALIN", "N")
imod <- which(MODELS == toupper(model))
if (imod == 11 && variance) {
warning("computing variance temporarily not available for model BH87.")