Nothing
cover.plot <- function(object, row, column, x = NULL, CI = 0.95,
medians = TRUE, col = NULL, ylim = c(0,1),
ylab, lty = par("lty"), lwd = par("lwd"), ...) {
if (any(class(object) == "eiMD")) {
Beta <- object$draws$Beta
if (is.null(Beta))
stop("precinct-level draws for Beta not stored in output from ei.MD.bayes")
}
else if (any(class(object) == "eiMD.beta")) {
Beta <- object
}
else
stop("coverplot only works with output from ei.MD.bayes or read.beta")
if (is.mcmc(Beta)) {
tnames <- strsplit(colnames(Beta), "beta.")
get2 <- function(x) x[2]
idx <- strsplit(sapply(tnames, get2), ".", fixed = TRUE)
idx <- as.list(as.data.frame(matrix(unlist(idx), byrow = TRUE,
nrow = length(idx), ncol = length(idx[[1]]))))
idx <- lapply(idx, as.character)
idx <- lapply(idx, unique)
idx[[4]] <- 1:length(Beta[,1])
names(idx) <- c("rows", "columns", "precincts", "sims")
Betas <- array(t(object$draws$Beta), dim = sapply(idx, length),
dimnames = idx)
}
else {
idx <- dimnames(Beta)
}
if (missing(row) | missing(column)) {
stop("you must select a row and column marginal.")
}
frow <- idx$rows[grep(row, idx$rows)]
fcolumn <- idx$columns[grep(column, idx$columns)]
if (length(frow) < 1)
stop(paste(row, "not among available row marginals:",
paste(idx$rows, collapse = " ")))
if (length(frow) > 2)
stop(paste(row, "matches more than one row marginal"))
if (length(fcolumn) < 1)
stop(paste(column, "not among available column marginals:",
paste(idx$columns, collapse = " ")))
if (length(fcolumn) > 2)
stop(paste(column, "matches more than one column marginal"))
usebetas <- t(Betas[frow, fcolumn, ,])
quant.fcn <- function(x){quantile(x, c(0.5 - CI/2, 0.5 + CI/2))}
seglims <- apply(usebetas, 2, quant.fcn)
meds <- apply(usebetas, 2, median)
if (is.null(x))
x <- as.integer(names(meds))
if (missing(ylab))
ylab <- paste("Proportion of", row, "in", column)
if (length(col) >= 2) {
col1 <- col[1]
col2 <- col[2]
}
else {
if (is.null(col))
col1 <- col2 <- par("fg")
else
col1 <- col2 <- col
}
if (medians) type <- "p"
else type <- "n"
plot(x, meds, type = type, ylim = ylim, ylab = ylab, col = col1, ...)
segments(x, seglims[1,], x, seglims[2,], col = col2, lty = lty, lwd = lwd)
}
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