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#' Summarize the endogenous switching regression results.
#'
#' @param object Estimated endogenous switching regression model.
#' @param ... Other elements.
#'
#' @return A list containing the key regression results.
#'
#' @export
#'
summary.endoSwitch <- function(object, ...){
if(!inherits(object, "endoSwitch"))
stop("'summary.endoSwitch' called on a non-'endoSwitch' object")
coefEst <- object$MLE.Results$estimate
coefSD <- sqrt(-diag(solve(object$MLE.Results$hessian)))
tStat <- coefEst/coefSD
pValue <- 2*stats::pnorm(-abs(tStat))
results <- cbind("Estimate" = round(coefEst, 4), 'Std. error' = round(coefSD, 4),
't value' = round(tStat, 4), 'Pr(> t)' = round(pValue, 4))
distPar <- object$distPar
distPar <- cbind(distPar, 2*stats::pnorm(-abs(distPar[,3])))
results[(nrow(results) - 3):nrow(results), ] <- distPar
row.names(results)[(nrow(results) - 3):nrow(results)] <- c('Outcome.0.Sigma', 'Outcome.1.Sigma',
'Outcome.0.Rho', 'Outcome.1.Rho')
treatEffect <- object$treatEffect
if(!is.data.frame(treatEffect)){treatEffect <- 'Treatment effects are not calculated. Use treatEffect = T to calculate them'}
summary <- list(maxinType = object$MLE.Results$type,
iterations = object$MLE.Results$iterations,
returnCode = object$MLE.Results$code,
returnMessage = object$MLE.Results$message,
loglik = object$MLE.Results$maximum,
constrains = object$MLE.Results$constraints,
estimate = results,
treatmentEffect = treatEffect)
class(summary) <- "summary.endoSwitch"
summary
}
# print.summary.endoSwitch <- function(x, print = T){
# coefEst <- object$MLE.Results$estimate
# coefSD <- sqrt(-diag(solve(object$MLE.Results$hessian)))
# tStat <- coefEst/coefSD
# pValue <- 2*pnorm(-abs(tStat))
#
# results <- cbind("Estimate" = round(coefEst, 4), 'Std. error' = round(coefSD, 4),
# 't value' = round(tStat, 4), 'Pr(> t)' = round(pValue, 4))
#
# distPar <- object$distPar
# distPar <- cbind(distPar, 2*pnorm(-abs(distPar[,3])))
#
# results[(nrow(results) - 3):nrow(results), ] <- distPar
# row.names(results)[(nrow(results) - 3):nrow(results)] <- c('Outcome.0.Sigma', 'Outcome.1.Sigma',
# 'Outcome.0.Rho', 'Outcome.1.Rho')
#
# cat('--------------------------------------------\n')
# cat('Maximum Likelihood Estimation\n')
# cat('Log-Likelihood:', x$MLE.Results$maximum, '\n')
# cat('Coefficient estimates:\n')
# results
# }
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