Dat {Frames2}

Joint sample database

Description

This dataset contains some variables coming from a real dual frame survey conducted in 2013 in Andalusia (Spain) by a scientific institute specialized in social topics. With this dataset it is intented to show how to properly split a joint dual frame sample into subsamples, so functions of Frame2 can be used.

Usage

Dat

Format

Drawnby

Indicates whether individual was selected in the landline sample(1) or in the cell phone sample(2).

Stratum

Indicates the stratum each individual belongs to. For individuals selected in cell phone sample, value of this variable is NA.

Opinion

Response of the individual to the question: Do you think that immigrants currently living in Andalusia are quite a lot? 1 represents "yes" and 0 represents "no".

Landline

Indicates whether individual has a landline (1) or not (0).

Cell

Indicates whether individual has a cell phone(1) or not(0).

ProbLandline

First order inclusion probability of reaching the individual by landline.

ProbCell

First order inclusion probability of reaching the individual by cell phone.

Income

Monthly income (in euros) of the individual.

Details

The survey was based on two frames: a landline frame and a cell phone frame. Landline frame was stratified by province and simple random sampling without replacement was considered in cell phone frame. The size of the whole sample was n = 2402. Total of the variable Income in the whole population is X_{Income} = 12686232063.

Examples

data(Dat)
attach(Dat)

#We are going to split dataset Dat into two new datasets, each 
#one corresponding to a frame: frame containing individuals
#using landline and frame containing individuals using cell phone.

FrameLandline <- Dat[Landline == 1,]
FrameCell <- Dat[Cell == 1,]

#Equally, we can split the original dataset in three new different 
#datasets, each one corresponding to one domain: first domain containing
#individuals using only landline, second domain containing individuals
#using only cell phone and the third domain containing individuals
#using both landline and cell phone.

DomainLandline <- Dat[Landline == 1 & Cell == 0,]
DomainCell <- Dat[Landline == 0 & Cell == 1,]
DomainBoth <- Dat[Landline == 1 & Cell == 1,]

#From the domain datasets, we can build frame datasets

FrameLandline <- rbind(DomainLandline, DomainBoth)
FrameCell <- rbind(DomainCell, DomainBoth)