search for: cofc

Displaying 7 results from an estimated 7 matches for "cofc".

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2000 Jul 04
1
specifying a model formula on the fly
...)" prepended to the variable names. I suspect that I could iterate across the results of name(x) and somehow use quote() and eval() to solve this problem, but I cannot seem to make it work. Any suggestions would be greatly appreciated. Cheers, a. -- Allan Strand, Biology http://linum.cofc.edu College of Charleston Ph. (843) 953-8085 Charleston, SC 29424 Fax (843) 953-5453 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or &q...
2001 Oct 06
0
calculating DNA mismatch distributions for large populations
...system i386, freebsd4.4 status major 1 minor 3.1 year 2001 month 08 day 31 language R -- Allan Strand, Biology http://linum.cofc.edu College of Charleston Ph. (843) 953-8085 Charleston, SC 29424 Fax (843) 953-5453 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or &q...
2002 Mar 07
8
linear correlation?
Whether the two variables have the same units does not matter. Moreover, even if there were some way of converting cm to kg the correlation would still be the same because the correlation is invariant under unit conversion as it is invariant under multiplication of its arguments by a constant. As for your second question, the correlation estimator is a continuous function of each of the
2000 Jul 11
2
warnings associated with logistic regression
.... A read of Hosmer and Lemeshow (1989) does not provide much insight, so I thought that I would post the question to the list. Any comments? Also, I'd be happy to email a dataset that exhibits this behavior if anyone is curious enough. Cheers, A. -- Allan Strand, Biology http://linum.cofc.edu College of Charleston Ph. (843) 953-8085 Charleston, SC 29424 Fax (843) 953-5453 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or &q...
2005 Aug 16
2
recategorizing a vector into discrete states
Hi All, I'm trying to take a numerical vector and produce a new vector of the same length where each element in the first is placed into a category given by a 'breaks-like' vector. The values in the result should equal the lower bounds of each category as defined in the breaks vector. I suspect that a vectorized solution is pretty simple, but I can't seem to figure it
2007 Mar 05
1
enumerating non-overlapping pairs of elements from a vector
Hi All, I'm trying to come up with a clear and concise (and fast?) solution to the following problem. I would like to take a vector 'v' and enumerate all of the ways in which it can be broken into n sets of length 2 (if the length of the vector is odd, and an additional set of length 1). An element of 'v' can only appear in one set. Order within sets is not important.
2001 Sep 10
1
problems linking c++ code
I've been trying to learn about dynamically loading subroutines in R. Ultimately I would like to use this approach to implement some simulations. For the moment though, I've run into a problem compiling c++ code and loading it into R. The 'C/C++' and 'R'code below works fine when compiled and linked with gcc, but gives an error when the library is compiled and linked with