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#' Predict method for hpaBinary
#' @param object Object of class "hpaBinary"
#' @template newdata_Template
#' @param is_prob logical; if TRUE (default) then function returns
#' predicted probabilities. Otherwise latent variable
#' (single index) estimates will be returned.
#' @template elipsis_Template
#' @return This function returns predicted probabilities based on
#' \code{\link[hpa]{hpaBinary}} estimation results.
predict.hpaBinary <- function (object, ...,
newdata = NULL,
is_prob = TRUE)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
return(predict_hpaBinary(object, newdata, is_prob))
}
###
#' Summarizing hpaBinary Fits
#' @param object Object of class "hpaBinary"
#' @template elipsis_Template
#' @return This function returns the same list as \code{\link[hpa]{hpaBinary}}
#' function changing its class to "summary.hpaBinary".
summary.hpaBinary <- function (object, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
return(summary_hpaBinary(object))
}
###
#' Summary for "hpaBinary" object
#' @param x Object of class "hpaBinary"
#' @template elipsis_Template
print.summary.hpaBinary <- function (x, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
return(print_summary_hpaBinary(x))
}
###
#' Plot hpaBinary random errors approximated density
#' @param x Object of class "hpaBinary"
#' @param y this parameter currently ignored
#' @template elipsis_plot_Template
plot.hpaBinary <- function (x, y = NULL, ...)
{
if (!is.null(y))
{
warning("Note that y parameter currently ignored.")
}
# Load data from the model
pol_coefficients <- as.numeric(unlist(x["pol_coefficients"]))
pol_degrees <- as.numeric(unlist(x["pol_degrees"]))
mean <- as.numeric(x["mean"])
sd <- as.numeric(x["sd"])
# Adjust precision
errors_exp <- as.numeric(x["errors_exp"])
errors_var <- as.numeric(x["errors_var"])
plot_min <- errors_exp - 3.8 * sqrt(errors_var);
plot_max <- errors_exp + 3.8 * sqrt(errors_var);
n <- 10000;
precise <- (plot_max - plot_min) / n;
x_vec <- plot_min + cumsum(rep(precise, n))
den <- dhpa(x = x_vec,
pol_coefficients = pol_coefficients,
pol_degrees = pol_degrees,
mean = mean, sd = sd)
den_min = min(den)
den_max = max(den)
# Plot the result
# prepare the arguments
plot_args <- list(...)
plot_args_names <- names(plot_args)
if(!("xlim" %in% plot_args_names))
{
plot_args$xlim <- c(plot_min, plot_max)
}
if(!("type" %in% plot_args_names))
{
plot_args$type <- "l"
}
if(!("lwd" %in% plot_args_names))
{
plot_args$lwd <- 3
}
if(!("main" %in% plot_args_names))
{
plot_args$main <- "Random Errors Density Approximation Plot"
}
if(!("xlab" %in% plot_args_names))
{
plot_args$xlab <- "value"
}
if(!("ylab" %in% plot_args_names))
{
plot_args$ylab <- "density"
}
plot_args$x = x_vec
plot_args$y = den
# make the plot
do.call(plot, plot_args)
}
###
#' Calculates log-likelihood for "hpaBinary" object
#' @description This function calculates log-likelihood for "hpaBinary" object
#' @usage \method{logLik}{hpaBinary}(object, ...)
#' @param object Object of class "hpaBinary"
#' @template elipsis_Template
logLik.hpaBinary <- function (object, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
lnL <- logLik_hpaBinary(object)
attr(lnL, "class") <- "logLik"
attr(lnL, "df") <- length(as.vector(object$x1))
return(lnL)
}
###
#' Print method for "hpaBinary" object
#' @param x Object of class "hpaBinary"
#' @template elipsis_Template
print.hpaBinary <- function (x, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
cat(paste("It is the object of class",class(x),"\n"))
cat("It contains the following elements:\n")
cat(names(x), sep = ", ")
cat("\n")
cat("---\n")
cat("Estimation results:\n")
print(x$results)
cat("---\n")
cat(paste("Log-likelihood function value is:", round(x$'log-likelihood', 3), "\n"))
cat("---\n")
cat("Please, use summary() function to get additional information\n")
}
#' Extract coefficients from hpaBinary object
#' @param object Object of class "hpaBinary"
#' @template elipsis_Template
coef.hpaBinary <- function (object, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
return(object$x1)
}
#' Extract covariance matrix from hpaBinary object
#' @param object Object of class "hpaBinary"
#' @template elipsis_Template
vcov.hpaBinary <- function (object, ...)
{
if (length(list(...)) > 0)
{
warning("Additional arguments passed through ... are ignored.")
}
return(object$cov_mat)
}
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