A RDBESDataObject converted from package survey dataset apistrat
Source:R/data.R
Pckg_survey_apistrat_H1.RdThis data set is a stratified version of the previous "apiclus2" data. It is derived from the Academic Performance Index computed for all California schools based on standardized testing of students. The original data sets contain information for all schools with at least 100 students and for various probability samples of the data. The design is 1-stage cluster sampling with clusters of unequal sizes. An SRS of 200 districts is selected (psus) from the 755 districts in the population. All schools within district are selected (ssus).
Format
A list containing entries required for H1 RDBES data:
- DE
the Design data table. Contains 1 DE row
- SD
the Sampling Details data table. Contains 1 child SD row
- VS
the Vessel Selection data table. Contains 200 child rows (the 200 schools finally observed), each associated to its cluster (dname), VSnumberTotalClusters is 755, VSnumberTotal is 50-100 schools sampled
- FT
the Fishing Trip data table. Contains 200 child rows (the 200 schools finally observed), each associated to its cluster (dname), FTnumberTotal is the number of schools in the cluster (census)
- FO
the Fishing Operation data table. Just 1:1 links to the final data (in SA)
- SS
the Species Selection data table. Just 1:1 links to the final data (in SA)
- SA
the Sample data table. SAsampleWeightMeasured is enroll
- FM
the Frequency Measure data table
- BV
the Biological Variable data table
- VD
the Vessel Details data table. Contains 311 child rows
- SL
the Species List data table. Contains 1 child row
- IS
the Individual Species table