Displaying 3 results from an estimated 3 matches for "catvar".
2003 Jan 29
3
multinomial conditional logit models
...case must be identified by a strata variable (id)
* Each duplicate must be identified by a variable indexing the
choices (newy)
* A dichotomous variable must indicate which duplicate corresponds
with the respondent's choice (didep)
I've done this as follows:
mclgen <- function (datamat,catvar) {
ncat <- nlevels(catvar)
id<-1:length(catvar)
datamat<-cbind(id,datamat)
perschoice <-NULL
for (i in 1:ncat) {
perschoice<-rbind(perschoice,datamat)
}
perschoice<-perschoice[sort.list(perschoice$id),]
perschoice$newy<-gl(ncat,1,length=nrow(perschoice))
dep<-pars...
2011 Nov 19
3
Data analysis: normal approximation for binomial
Dear R experts,
I am trying to analyze data from an article, the data looks like this
Patient Age Sex Aura preCSM preFreq preIntensity postFreq postIntensity
postOutcome
1 47 F A 4 6 9 2 8 SD
2 40 F A/N 5 8 9 0 0 E
3 49 M N 5 8 9 2 6 SD
4 40 F A 5 3 10 0 0 E
5 42 F N 5 4 9 0 0 E
6 35 F N 5 8 9 12 7 NR
7 38 F A 5 NA 10 2 9 SD
8 44 M A 4 4 10 0 0 E
9 47 M A 4 5 8 2 7 SD
10 53 F A 5 3 10 0 0 E
11
2012 Dec 10
3
use variable in for loop to name output files
Hi,
This question should be simple to answer. I am a new R user.
I have a data.frame called appended. I would like to break it into 7 smaller
datasets based on the value of a categorical variable dp (which has values
1:7). I would like to name the smaller datasets set1, set2, set3,....,set7.
I don't know how to refer to the variable in the for loop, when naming the
output datasets. In STATA