predictivefunctions.Rmd
After fitting an LRMoE model, the following predictive functions provide further insights into the dataset. These functions start with predict_
followed by a quantity of interest (e.g. mean_
) listed below.
class
: latent class probabilities and the most likely latent class;mean
: mean of response;var
: variance of response;limit
: limited expected value (LEV) of response, that is, \(E[{min}(Y, d)]\);excess
: expected excess value of response, that is, \(E[{max}(Y-d, 0)]\); andVaRCTE
: quantile (or Value-at-Risk/VaR) and conditional tail expectation (CTE, or tail-VaR/TVaR) of response.These quantities can be calculated based on either the prior
and posterior
latent class probabilities, as indicated by the suffix of these functions.
prior
: the latent class probabilities are based on the covariates X
and logit regression coefficients alpha
.posterior
: the latent class probabilities are based on the covariates X
, logit regression coefficients alpha
and observed values Y
.The differences of these probabilities can be found in Fung et al. (2019).
The following contains a detailed description of all predictive functions included in the package. Throughout this page, Y
is a matrix of response, X
a matrix of covariates, alpha
a matrix of logit regression coefficients and model
a matrix of expert functions.
predict_class_prior
predict_class_posterior
predict_mean_prior
predict_mean_posterior
predict_var_prior
predict_var_posterior
predict_limit_prior
predict_limit_posterior
predict_excess_prior
predict_excess_posterior
predict_VaRCTE_prior
predict_VaRCTE_posterior