One-sample or two-sample t-test. This function is a wrapper for
svymean in the one-sample case and for
svyglm in the two-sample case. Degrees of freedom are
degf(design)-1 for the one-sample test and degf(design)-2
for the two-sample case.
svyttest(formula, design, ...)Formula, outcome~group for two-sample,
outcome~0 or outcome~1 for one-sample. The group variable
must be a factor or character with two levels, or be coded 0/1 or 1/2
survey design object
for methods
Object of class htest
# NOT RUN {
data(api)
dclus2<-svydesign(id=~dnum+snum, fpc=~fpc1+fpc2, data=apiclus2)
tt<-svyttest(enroll~comp.imp, dclus2)
tt
confint(tt, level=0.9)
svyttest(enroll~I(stype=="E"),dclus2)
svyttest(I(api00-api99)~0, dclus2)
# }
Run the code above in your browser using DataCamp Workspace