#' @title Active cases of COVID19
#' @aliases g_active_cases
#' @description This function graphs the actives cases cases of COVID19 in the DR.
#' @usage g_active_cases(saveplot = FALSE, savepng = FALSE)
#' @param saveplot Logical. Should save the ggplot objet to the \code{.GlobalEnv}? Default \code{FALSE}.
#' @param savepng Logical. Should save a png version of the plot? Default \code{FALSE}.
#' @return Chart of COVID19 active cases and save a copy in png format on the computer
#' at the address defined in \code{setwd()}.
#' @export
#' @importFrom scales comma
#' @examples
#' g_active_cases(saveplot = FALSE, savepng = TRUE)
#' @name g_active_cases
g_active_cases <- function(saveplot = FALSE,
savepng = FALSE){
if (exists('data_cum') == FALSE) {
stop("data objects are missing, run load_data_covid_dr()")
}
df_ac <-
data_cum %>%
mutate(date = ymd(date),
ac = Positive - Deaths - Recovered) %>%
select(date, ac)
lab_ac <-
labs(title = "DR: COVID19 active cases",
subtitle = 'AC = Positive - Deaths - Recovered',
caption = "Source: @fidelmorla with the special bulletins of @SaludPublicaRD",
x = "",
y = ""
)
max_ac <-
df_ac %>%
summarise(max_ac = max(ac)) %>%
as.integer() %>%
round(digits = -3) %>%
sum(1000)
lim_dates <- c(ymd(
data_cum %>%
select(date) %>%
filter(date == min(date)) %$%
date),
data_cum %>%
select(date) %>%
filter(date == max(date)) %$%
date + 5)
g_ac <-
df_ac %>%
ggplot(aes(x = date, y = ac)) +
geom_area(fill = "royalblue") +
scale_x_date(limits = lim_dates,
date_labels = "%d %b",
date_breaks = "3 days") +
scale_y_continuous(labels = scales::comma,
breaks = c(seq(0, max_ac, max_ac / 4)),
limits = c(0,max_ac)) +
geom_text(data = df_ac %>% tail(1),
#check_overlap = TRUE,
size = 4.5,
vjust = -0.5,
hjust = -0.15,
show.legend = FALSE,
aes(col = "l", label = scales::comma(ac))) +
scale_fill_manual(values = c("royalblue", 'royalblue')) +
scale_color_manual(values = c("royalblue", 'royalblue')) +
lab_ac +
drcovidplots::list_themes['t6']
print(g_ac) %>% suppressWarnings()
if (saveplot == TRUE) {assign('g_ac', g_ac, envir = .GlobalEnv)}
if (savepng == TRUE) {
ggsave(filename = "active.png",
plot = g_ac,
device = "png",
width = 18.333333333333332 / 1.5,
height = 10.466666666666667 / 1.5,
units = "in")
}
}
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