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...meters -Open Program. -Enter Parameters. -Cause program to execute (typically done by simply entering " \n " after manually entering parameters). -Enter name of output file. -Close program. Any advice will be greatly appreciated! Thanks, Dan Rabosky Dan Rabosky Department of Ecology and Evolutionary Biology 237 Corson Hall Cornell University Ithaca, NY14853-2701 USA web: http://www.birds.cornell.edu/evb/Graduates_Dan.htm

...the recommended approach and/or is there a better way to do this? One potential problem with this approach is that - should an error occur within a private function, it may be very difficult for the user to decipher the nature of the problem. Any suggestions will be greatly appreciated. ~Dan Rabosky Dan Rabosky Department of Ecology and Evolutionary Biology 237 Corson Hall Cornell University Ithaca, NY14853-2701 USA DLR32 at cornell.edu web: http://www.birds.cornell.edu/evb/Graduates_Dan.htm

....GlobalEnv". I have no idea what this means; I'm sure that this is amply documented, but I confess that I have a rather difficult time with much of the documentation on writing packages. Apologies for the elementary level of these questions, and thanks in advance for your help! ~Dan Rabosky Dan Rabosky Department of Ecology and Evolutionary Biology 237 Corson Hall Cornell University Ithaca, NY14853-2701 USA 607 254 4262 (office) 607 592 4636 (cell) DLR32 at cornell.edu web: http://www.birds.cornell.edu/evb/Graduates_Dan.htm

...M? or 2) is there something fundamentally flawed with the manner in which I dynamically create variables in lists, without initializing them in some fashion? This approach worked fine until I noticed this issue with variables having similar names. Thanks very much in advance for your help. Dan Rabosky Dan Rabosky Department of Ecology and Evolutionary Biology Corson Hall Cornell University Ithaca, NY 14853

...he estimator gives a good approximation of the modal values of each distribution, but I can't figure out how to obtain these values short of visually estimating the location of the mode using the plot(density). Is there a relatively easy way to do this? Thanks in advance for your help! Dan Rabosky Dan Rabosky Department of Ecology and Evolutionary Biology Cornell University Ithaca, NY14853-2701 USA web: http://www.birds.cornell.edu/evb/Graduates_Dan.htm

This might be of interest: http://math.usu.edu/~minnotte/research/software/modetree.r (I was not able to get to the link, but google has a cached version.) Prof. Marron's SiZer maps may also be of interest, but AFAIK the code is in Matlab only. Andy From: Dan Rabosky > > > Hello... > > Is it possible to use "density" or another kernel density > estimator to > identify the mode of a distribution? When I use 'density', > the resulting > density plot of my data is much cleaner than the original > noisy histo...

...n(B, y, z){ 1 + exp(B*y - B*z); } fx1 <- function(x, r0 = 0.12, k=-0.10, a=0.5, tshift=8.36){ (r0*exp(r0*t0 + (k/B)*log(fx4(B, t0, tshift)) - r0*x - (k/B)*log(fx4 (B, x, tshift)))) } integrate(fx1, 8.36, 10, stop.on.error = FALSE); } Thanks in advance for your help... Dan Rabosky Department of Ecology and Evolutionary Biology & Fuller Evolutionary Biology Program Cornell Lab of Ornithology Cornell University Ithaca, NY 14853-2701 [[alternative HTML version deleted]]

...does this occur at roughly the same iteration every time? That would suggest that the memory issue is cumulative - shouldn't any memory consumed within rq(...) be freed up after I return??? This is occurring with R 2.10.1 on a 64 bit machine running OSX 10.6.2 (6 GB RAM). Thanks! ~Dan Rabosky [[alternative HTML version deleted]]