On May 6, 2011, at 16:37 , Joshua Wiley wrote: > On Fri, May 6, 2011 at 6:33 AM, CarJabo <carly_...@hellokitty.com> wrote: >> sorry I am not asking someone to do my homework, as I have finished all the >> procedure. I am just wondering why this technical error occurs, so I can fix >> it myself. > .... > If whatever institution you are taking this at simply gives > assignments, grades them and penalizes for plagiarism without having > any instructors or teachers, I recommend moving to an institution > where classes are taught by someone who can answer questions etc. As > Dr. Murdoc (and the posting guide) said and say, R-help is not for > homework.
The occasional hint might slip though the iron-cladding once in a while though. In this case, learning how to use options(error=recover) might be relevant. Turn it on, let the error occur and do the post mortem. The culprit is obviously that f(2) isn't positive. Unless F has turned out all-zero or has negative elements, you need a larger value of 2, otherwise, find out why F is weird. -- Peter Dalgaard Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.
