Nothing
`print.summary.cusp` <-
function (x, digits = max(3, getOption("digits") - 3), symbolic.cor = x$symbolic.cor,
signif.stars = getOption("show.signif.stars"), ...)
{
cat("\nCall:\n")
cat(paste(deparse(x$call), sep = "\n", collapse = "\n"),
"\n\n", sep = "")
cat("Deviance Residuals: \n")
if (x$df.residual > 5) {
x$deviance.resid <- quantile(x$deviance.resid, na.rm = TRUE)
names(x$deviance.resid) <- c("Min", "1Q", "Median", "3Q",
"Max")
}
print.default(x$deviance.resid, digits = digits, na.print = "",
print.gap = 2)
if (length(x$aliased) == 0) {
cat("\nNo Coefficients\n")
}
else {
if (!is.null(df <- x$df) && (nsingular <- df[3] - df[1]))
cat("\nCoefficients: (", nsingular, " not defined because of singularities)\n",
sep = "")
else cat("\nCoefficients:\n")
coefs <- x$coefficients
if (!is.null(aliased <- x$aliased) && any(aliased)) {
cn <- names(aliased)
coefs <- matrix(NA, length(aliased), 4, dimnames = list(cn,
colnames(coefs)))
coefs[!aliased, ] <- x$coefficients
}
printCoefmat(coefs, digits = digits, signif.stars = signif.stars,
na.print = "NA", ...)
}
cat("\n\n", apply(cbind(paste(format(c("Null", "Linear",
"Logist", x$resid.name), justify = "right"), "deviance:"),
format(unlist(x[c("null.deviance", "r2lin.dev", "r2log.dev",
"deviance")]), digits = max(5, digits + 1)), " on",
format(unlist(x[c("df.null", "r2lin.df", "r2log.df",
"df.residual")])), " degrees of freedom\n"), 1, paste,
collapse = " "), sep = "")
inf.crit = data.frame("R Squared" = c(x$r2lin.r.squared,
x$r2log.r.squared, x$r2cusp.r.squared), logLik = c(x$r2lin.logLik,
x$r2log.logLik, x$r2cusp.logLik), npar = c(x$r2lin.npar, x$r2log.npar,
x$r2cusp.npar), AIC = c(x$r2lin.aic,
x$r2log.aic, x$r2cusp.aic), AICc = c(x$r2lin.aicc, x$r2log.aicc,
x$r2cusp.aicc), BIC = c(x$r2lin.bic, x$r2log.bic, x$r2cusp.bic))
rownames(inf.crit) <- paste(c("Linear", "Logist", "Cusp"),
"model")
cat("\n")
print(na.omit(inf.crit))
cat("---\nNote: R.Squared for cusp model is Cobb's pseudo-R^2. This value\n can become negative.")
.chi2 = abs(-2 * ( x$r2lin.logLik - x$r2cusp.logLik ))
.chi2df = abs(x$r2lin.npar - x$r2cusp.npar)
cat("\n\n\tChi-square test of linear vs. cusp model\n\n")
cat("X-squared = ", formatC(.chi2), ", df = ", .chi2df, ", p-value = ", formatC(1-pchisq(.chi2, .chi2df)), sep="")
if (nchar(mess <- naprint(x$na.action)))
cat(" (", mess, ")\n", sep = "")
cat("\n\n", "Number of optimization iterations: ", x$iter,
"\n", sep = "")
correl <- x$correlation
if (!is.null(correl)) {
p <- NCOL(correl)
if (p > 1) {
cat("\nCorrelation of Coefficients:\n")
if (is.logical(symbolic.cor) && symbolic.cor) {
print(symnum(correl, abbr.colnames = NULL))
}
else {
correl <- format(round(correl, 2), nsmall = 2,
digits = digits)
correl[!lower.tri(correl)] <- ""
print(correl[-1, -p, drop = FALSE], quote = FALSE)
}
}
}
cat("\n")
invisible(x)
}
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