RNHANES-package         RNHANES simplifies downloading and analyzing
                        NHANES data.
demography_filename     Translates cycle years into the correct
                        demography filename suffix, e.g. '2001-2002'
                        returns 'B'
download_nhanes_file    Download an NHANES data file from a given cycle
file_suffix             Returns the NHANES file suffix for the given
                        year
load_nhanes_description
                        Download an NHANES description file
nhanes_analyze          Compute quantiles from NHANES weighted survey
                        data
nhanes_cycle_years      List the valid NHANES cycle years
nhanes_data_files       List the NHANES data files
nhanes_detection_frequency
                        Compute detection frequencies of NHANES data
nhanes_hist             Plot a weighted histogram of an NHANES variable
nhanes_load_data        Download NHANES data files.
nhanes_load_demography_data
                        Download NHANES demography files for a specific
                        cycle.
nhanes_quantile         Compute quantiles from NHANES weighted survey
                        data
nhanes_sample_size      Compute the sample size of NHANES data
nhanes_search           Search the results from nhanes_variables or
                        nhanes_data_files
nhanes_survey           Apply a function from the survey package to
                        NHANES data
nhanes_survey_design    Build survey objects for NHANES data
nhanes_variables        Load the NHANES comprehensive variable list
nhanes_vcov             Extract variance/covariance matrix from
                        parameters of svymean
process_file_name       Processes a file name to make sure it is valid
                        and has the correct suffix and extension File
                        names with an extension (e.g. ".XPT") are not
                        altered
validate_year           Check that the year is in the correct format
                        e.g. '2001-2002' is correct and returns TRUE,
                        '2001' is not correct and returns FALSE
