Nothing
#' @export
precintcon.plot.histogram <- function(
...,
density = FALSE,
grouped = FALSE,
xlab = "Precipitation (mm)",
ylab = "Frequency",
legend.title = "Legend",
legend = NULL,
fontsize = 10,
axis.text.color = "black",
export = FALSE,
export.name = "histogram_plot.png",
width = 10,
height = 10,
units = "cm",
args = NA
) {
l <- list(...)
if (length(l) > 0) {
if (length(l) > 1 && !export && !grouped)
par(ask = TRUE)
varl <- ifelse(is.na(args), as.character(match.call()[1:length(l)+1]), args)
if (!is.null(legend) && length(varl) != length(legend)) {
stop(paste("legend should has length equals to the number of input data. legend parameter length",
length(legend), ": number of input data", length(varl)))
} else if (!is.null(legend)) {
varl <- as.list(legend)
}
#######
#
# Defining function for x data
#
f <- function(x, n) {
ddd <- NULL
if (is.element("precintcon.daily", class(x))) {
ddd <- as.vector(as.matrix(x[ ,3:33]))
} else if (is.element("precintcon.monthly", class(x))) {
ddd <- as.vector(x$precipitation)
} else if (is.element("precintcon.spi", class(x))) {
ddd <-as.vector(x$spi)
} else if (is.element("precintcon.pci", class(x))) {
ddd <-as.vector(x$pci)
} else {
stop("input data should be either of type precintcon.daily, precintcon.monthly, precintcon.spi, or precintcon.pci")
}
ddd <- ddd[!is.na(ddd)]
data.frame(dataset = paste(n, sep = ""), x = ddd)
}
l <- mapply(f, l, varl, SIMPLIFY = FALSE)
if (!grouped) {
#######
#
# Defining function for graph generation
#
g <- function(d, n,
density, ylab, xlab, export.name, export, width, height, units) {
graph <- ggplot(d, aes_string(x = "x")) +
(if (!density) geom_histogram() else geom_density(fill = "grey", alpha = .3, show_guide = F)) +
xlab(xlab) + ylab(ylab) +
theme(text = element_text(size = fontsize),
axis.text = element_text(color = axis.text.color)) +
facet_grid(. ~ dataset)
if (!export) {
suppressMessages(print(graph))
} else {
export.name <- paste(n, export.name, sep = "_")
ggsave(export.name, graph, width = width, height = height, units = units)
}
}
#########
#
# Generating graphs for each input data
#
mapply(g, l, varl, density = density, export = export,
export.name = export.name, width = width, height = height, units = units,
MoreArgs = list(ylab = ylab, xlab = xlab),
SIMPLIFY = FALSE)
} else {
######
#
# list of data.frame to data.frame (rbind)
#
l <- do.call(rbind.data.frame, l)
graph <- ggplot(l, aes_string(x = "x", fill = "dataset")) +
(if (!density) geom_histogram() else geom_density(alpha = .3)) +
xlab(xlab) + ylab(ylab) +
scale_fill_discrete(legend.title) +
theme(text = element_text(size = fontsize),
axis.text = element_text(color = axis.text.color))
if (!export) {
suppressMessages(print(graph))
} else {
ggsave(export.name, graph, height = height, width = width, units = units)
}
}
} else {
stop("empty input data in precitcon.plot.histogram function.")
}
par(ask = FALSE)
}
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