*.interval              Multiplication function
+.interval              Adding function
-.interval              Subtraction function
/.interval              Dividing function
Gcsemv                  Exam results on the GCSE
as.data.frame.interval
                        Transform interval objects into data.frames
as.interval             Function to transform objects into an interval
                        object
center.interval         Function to give the center of the interval
chaincheck              Checking the chains on convergence
cleanup                 cleanup data.frames
contributions4intervals
                        get the likelihood contributions of interval
                        data
decompose_interval      decompose up intervals
doubleintegral          Function to calculate double integrals
extract_varnames        Function to extract the different elements of a
                        formula
fixed_intercept_check   Function to check multilevel models on the
                        existence of fixed intercepts
generate_interval       Function to generate an interval object
get_type                Get the type of variables.
hmi                     hmi: Hierarchical Multilevel Imputation.
hmi_pool                Averages the results of the imputation function
                        'hmi'.
idf2interval            Transform interval data frames into data.frames
                        with interval variables
imp_binary_multi        The function for hierarchical imputation of
                        binary variables.
imp_binary_single       The function for imputation of binary
                        variables.
imp_cat_multi           The function for hierarchical imputation of
                        categorical variables.
imp_cat_single          The function to impute unordered categorical
                        variables
imp_cont_multi          The function for hierarchical imputation of
                        continuous variables.
imp_cont_single         The function for imputation of continuous
                        variables.
imp_count_multi         The function for hierarchical imputation of
                        variables with count data.
imp_count_single        The function for imputation of binary
                        variables.
imp_interval            The function to impute interval data variables
imp_orderedcat_multi    The function for hierarchical imputation of
                        categorical variables.
imp_orderedcat_single   The function to impute ordered categorical
                        variables
imp_roundedcont         The function to impute rounded continuous
                        variables
imp_semicont_multi      The function for hierarchical imputation of
                        semicontinuous variables.
imp_semicont_single     The function for hierarchical imputation of
                        semicontinuous variables.
imputationcycle         Cycling
interval2idf            Transform interval variables to an interval
                        data frame
is.na.interval          is.na for interval objects
is_interval             Function to check whether an object is an
                        interval
list_of_types_maker     Helps the user to make a list of types.
negloglik               calculate the likelihood contribution of the
                        data
negloglik2_intervalsonly
                        calculate the likelihood contribution of
                        interval data only
pbivnormX               calculate probabilities from the cumulative
                        distribution function of a standard bivariate
                        normal distribution
plot.interval           Plotting interval variables
random_intercept_check
                        Function to check multilevel models on the
                        existence of random intercepts
resetPar                Function to reset all graphics parameters
sample_imp              Sample imputation.
sampler                 Function need to multivariate samples of a
                        truncated multivariate normal distribution
sna_interval            Get standard NAs from interval data
split_interval          Split up intervals
stand                   Standardizing function
