AIC.epifit              Function for calculating Akaike's 'An
                        Information Criterion' (AIC) from epifit
                        object.
calcAge                 Calculate the difference between two date in
                        terms of unit of time.
convertFromFactor       Convert factor variable to numeric or character
                        variable.
convertNA               Convert a character pattern or numeric value
                        into NA and vice versa.
countNA                 Count NAs in variables.
epifit                  Model fitting function for epifit package
epifit-package          Flexible Modelling Functions for
                        Epidemiological Data Analysis.
extractVariable         Extract variables according to mode from
                        data.frame.
getIndex                Get index by specifying cut points
listNumericIncompatibility
                        List incompatible values when converted into
                        numeric values.
modes                   Get the type or storage mode of an object.
print.epifit            Print function for epifit object.
pullOneValue            Pull one set of values from variables included
                        in data which are thought to include
                        essentially the same information.
pytable                 Make person-year table from individual data
removeVariable          Remove variables containing NaNs or NAs from
                        data.frames.
selectByIndex           Select objects by their position.
selectVariable          Select variables to keep or drop.
showContents            Show variable information in data.frame
strscan                 Extract words from a string vector.
