Weight Test

Returns logical values indicating whether a vector of variables is a weight for an edsurvey.data.frame, a light.edsurvey.data.frame, or an edsurvey.data.frame.list.

Usage

isWeight(var, data)

Arguments

var

a character vector of variables

data

an edsurvey.data.frame, a light.edsurvey.data.frame, or an edsurvey.data.frame.list

Value

a logical vector of values indicating if each element of var is a weight

Details

Note that this function returns TRUE only when the var element is the name of the weight used for making estimates but not if it is one of the individual jackknife replicates.

Author

Michael Lee and Paul Bailey

Examples

if (FALSE) { # \dontrun{
# read in the example data (generated, not real student data)
sdf <- readNAEP(path=system.file("extdata/data", "M36NT2PM.dat", package = "NAEPprimer"))

# TRUE
isWeight(var="origwt", data=sdf)

# FALSE
isWeight(var="dsex", data=sdf)
} # }