A Multi-Stage RDBESDataObject converted from package survey dataset apiclus2

Source: R/data.R

This data set 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 2-stage cluster sampling with clusters of unequal sizes. An SRS of 40 districts is selected (psus) from the 757 districts in the population and then up to 5 schools (min

  1. were selected from each district (ssus).

Pckg_survey_apiclus2_H1

Format

A list containing entries required for H1 RDBES data:

DE

the Design data table. Contains 1 DE row with DEstratumName == "Pckg_SDAResources_apiclus2_H1"

SD

the Sampling Details data table. Contains 1 child SD row

VS

the Vessel Selection data table. Contains 40 child rows (the 40 districts), VSnumberTotal is 757, VSnumberSampled is 40

FT

the Fishing Trip data table. Contains 126 child rows (the 126 schools finally observed), each associated to its cluster (dname), FTnumberTotal is the number of schools in district, FTnumberSAmpled is 1...5 schools sampled

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 (NB! there are 4 NAs)

FM

the Frequency Measure data table

BV

the Biological Variable data table

VD

the Vessel Details data table

SL

the Species List data table