Skip to content

Search Archives

Search tips
from:Name Search by author name, e.g. from:Duncan Murdoch "exact phrase" Match an exact phrase word1 word2 Match messages containing both words Date range Use the date pickers to filter results to a time period

Use the list dropdown to narrow results to a specific mailing list. Combine from: with other terms to filter by author and content.

5 results for “from:Chris Oldmeadow”

sliding window over a large vector
Chris Oldmeadow · Dec 15, 2008 · r-help

Hi all, I have a very large binary vector, I wish to calculate the number of 1's over sliding windows. this is my very slow function slide<-function(seq,window){ n<-length(seq)-window tot<-c() tot[1]<-sum...

simulate binary markov chain
Chris Oldmeadow · Dec 16, 2008 · r-help

Hi all, I was hoping somebody may know of a function for simulating a large binary sequence (length >10 million) using a (1st order) markov model with known (2x2) transition matrix. It needs to be reasonably fast. I have tried...

sequence with start and stop positions
Chris Oldmeadow · Aug 25, 2008 · r-help

Hi, I have a vector of start positions, and another vector of stop positions, eg start<-c(1,20,50) stop<-c(7,25,53) Is there a quick way to create a sequence from these vectors? new<-c(1...

sample consecutive integers efficiently
Chris Oldmeadow · Aug 27, 2008 · r-help

Hi all, I have some rough code to sample consecutive integers with length according to a vector of lengths #sample space (representing positions) pos<-c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15...

sample consecutive integers efficiently
Chris Oldmeadow · Aug 28, 2008 · r-help

Charles C. Berry wrote: > On Thu, 28 Aug 2008, Chris Oldmeadow wrote: > >> Hi all, >> >> I have some rough code to sample consecutive integers with length >> according to a vector of lengths >> >> #sample space (representing positions) >> pos<-c(1,2,3...

Can't find what you're looking for? Try searching with Google .