nhanes_vcov: Extract variance/covariance matrix from parameters of svymean

In SilentSpringInstitute/RNHANES: Facilitates Analysis of CDC NHANES Data

Extract variance/covariance matrix from parameters of svymean

Description

Extract variance/covariance matrix from parameters of svymean

Usage

nhanes_vcov(nhanes_data, columns, weights_column = "", filter = "")

Arguments

nhanes_data	data frame containing NHANES data
columns	columns to include in svymean for
weights_column	name of the weights column
filter	logical expression used to subset the data

Value

a data frame

Examples

## Not run: 
dat <- nhanes_load_data("PFC_G", "2011-2012", demographics = TRUE)

nhanes_vcov(dat, c("LBXPFOA", "LBXPFOS"))

## End(Not run)

SilentSpringInstitute/RNHANES documentation built on Feb. 15, 2024, 11:26 p.m.