Dear S-users: I have a character variable with 100 records and now I want to read the first letter from each record into a new variable. how can I do it in S-plus? thanks, Vincent Do you Yahoo!? Yaho
I wish I could get some help with statistical tests for two data sets,not necessary related with splus coding. the two data sets likes this: data set 1: total we have 56 patients
Hi, <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> I have a data set consisting of 3 treatment groups and 1 control group (10 subjects per group); at each of
Hi, <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> I have a data set consisting of 3 treatment groups and 1 control group (10 subjects per group); at each of
I have a data set with pre and post measurements for 4 different treatment groups. My interests will be 1: investigate the differences of post measurements among 4 different groups 2: investigate if
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> I have a data set for falls in the elderly. Basically we need to investigate if the intervention program adopt
Hi All, I am having some problem with SINK output. I am using sink to output the following results: print(paste("# id ", m)) print(paste(obs[1,1],obs[1,2],obs[1,3],obs[1,4])) print(paste(obs[2,1],obs
Dear S-users, I have one question about using cluster() and frailty() in coxph function. I have one data set with family id and medical center id. We first used cluster(familyid) to adjust for cluste
Dear All,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> I am reading some clinical literatures for our research paper. They adopted stepwise algorithm when building a fi