search for: ofprobabilities

Displaying 3 results from an estimated 3 matches for "ofprobabilities".

2008 Mar 11
0
Generating a new matrix using rbinom and a matrix ofprobabilities.
...x also What doesn't work? -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Economics Guy Sent: Wednesday, 12 March 2008 1:16 AM To: r-help at stat.math.ethz.ch Subject: [R] Generating a new matrix using rbinom and a matrix ofprobabilities. I am having a little trouble getting R to do something without writing a couple of very awkward loops. I have a matrix of probabilities and I want to generate a new matrix of ones and zeros where each element in the new matrix is the result of a draw from a binomial distribution where the probab...
2011 Jun 30
4
aggregating data
Hi, I am interested in using the cast function in R to perform some aggregation. I did once manage to get it working, but have now forgotten how I did this. So here is my dilemma. I have several thousands of probes (about 180,000) corresponding to each gene; what I'd like to do is obtain is a frequency count of the various occurrences of each probes for each gene. The data would look
2011 Jun 30
0
help with interpreting what nnet() output gives:
Greetings list, I am new to programming in R, and am using nnet() function for a project on neural networking. Firstly I wish to ask if there is any pdf explaining the algorithm nnet uses, which could tell me what the objects of the nnet class, like 'conn', 'nconn, 'nsunits', n and 'nunits' mean, and how weights are calculated. The package pdf has little or no