Student performance in California schools
The Academic Performance Index is computed for all California schools based on standardised testing of students. The data sets contain information for all schools with at least 100 students and for various probability samples of the data.
Create survey design object from dataset
srs_design <- svydesign(id = ~ 1, fpc = ~ fpc, data = apisrs) class(srs_design)
 "survey.design2" "survey.design"
Independent Sampling design svydesign(id = ~1, fpc = ~fpc, data = apisrs)
Functions in survey package
svyCprod svyboxplot svyby svycdf svychisq svyciprop svycontrast svycoplot svycoxph svydesign svyfactanal svyglm svyhist svykappa svykm svyloglin svylogrank svymean svymle svyolr svyplot svyprcomp svyquantile svyranktest svyratio svyrecvar svysmooth svystandardize svytable svytotal svyttest svyvar
## Population total of enroll variable (number of students enrolled) ## 3.6 million students svytotal(~ enroll, srs_design)
total SE enroll 3621074 169520
## Population mean of enroll variable (number of students enrolled) ## estimated mean school size 585 svymean(~ enroll, srs_design)
mean SE enroll 585 27.4