> Hope this is helpful, Certainly! Thanks Dan and Jim!
Now, I wonder where I can dig in to realize why this is better. Is C code for this function better than others? Is C guilty on this? Maybe I am too newbie. Thanks again, guys! Walter ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.