> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Weiwei Shi > Sent: Thursday, October 18, 2007 3:32 PM > To: jim holtman > Cc: [EMAIL PROTECTED] > Subject: Re: [R] alignment algorithm or pattern frequency calculation > > for example, > > a,b: 3 which means a and b appear together 3 times in my input list. > > On 10/18/07, jim holtman <[EMAIL PROTECTED]> wrote: > > It would be helpful if you explained what the numbers mean. > > > > On 10/18/07, Weiwei Shi <[EMAIL PROTECTED]> wrote: > > > Hi, > > > > > > I am looking for an algorithm (better if it is > implemented in R) which > > > can do the following: > > > > > > from the following list: > > > a,b,c,d > > > a,b,c > > > b,c > > > a,b,c,d,e > > > > > > to calculate > > > a,b,c,d: 2 > > > a,b,c: 3 > > > a,b: 3 > > > a,c: 3 > > > b,c: 4 > > > b,c,d:2 > > > > > > here, the order is not important. > > > > > > Thanks. > > >
I guess I have more questions than answers. 1. What are the rules for deciding on which patterns to search for? You don't list c,d or c,d,e, or single character patterns. 2. Are these patterns stored in comma separated strings or as character vectors or...? Dan Daniel J. Nordlund Research and Data Analysis Washington State Department of Social and Health Services Olympia, WA 98504-5204 ______________________________________________ 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.
