#' @title Positiveness by province from COVID19 in the Dominican Republic
#' @aliases g_positive_province
#' @description This function graphs the positive ratio (Positive cases / Tests)
#' from COVID19 in the Dominican Republic ordered by provinces.
#' @usage g_positive_province(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 Graph of the the positive ratio by provinces and saves a
#' copy in png format to the computer at the address defined in \code{setwd()}.
#' @export
#' @importFrom scales comma
#' @examples
#' g_positive_province()
#' g_positive_province(saveplot = FALSE, savepng = TRUE)
#' @name g_positive_province
g_positive_province <- function(saveplot = FALSE,
savepng = FALSE){
if (exists('data_province') == FALSE) {
stop("data objects are missing, run load_data_covid_dr()")
}
df_pos_prov <-
data_province %>%
mutate(Tests = as.numeric(Tests)) %>%
filter(date == max(date),
Province != 'NOESP') %>%
mutate(Pos = 100 * Cases / Tests,
rank = rank(Pos, ties.method = "first")) %>%
drop_na()
rep_actual <-
data_cum$Reports %>% max(na.rm = TRUE)
max_pos_p <-
df_pos_prov %>%
summarise(max_pos_prov = round(max(Pos))) %>%
select(max_pos_prov) %>%
as.integer() %>%
round(digits = -1) %>%
sum(10)
total_pos <- round(100 * sum(df_pos_prov$Cases)/sum(df_pos_prov$Tests),
digits = 2)
lab_pos_prov <-
labs(title = "DR: Positive ratio from COVID-19 by province",
subtitle = paste0("Country's positive ratio = ",
total_pos,
"%"),
caption = paste0("Source: @fidelmorla with information from special bulletin #",
rep_actual,
" of @SaludPublicaRD"),
x = "",
y = "%"
)
heatcol_pos <- sequential_hcl(n = 32,
palette = "OrRd",
power = 0.5,
l = 30,
c = 225,
c1 = 150)
suppressWarnings(g_pos_prov <-
df_pos_prov %>%
ggplot(aes(x = reorder(Province, rank, order = TRUE),
y = Pos,
fill = reorder(Province, -rank, order = TRUE),
col = reorder(Province, -rank, order = TRUE))) +
geom_col() +
scale_y_continuous(breaks = c(seq(0,
max_pos_p,
max_pos_p / 4)),
limits = c(0,
max_pos_p)) +
geom_text(aes(size = 16,
label = round(Pos,
digits = 1)),
hjust = -0.25) +
scale_fill_manual(values = heatcol_pos) +
scale_color_manual(values = heatcol_pos) +
coord_flip() +
lab_pos_prov +
drcovidplots::list_themes['t6'] +
theme(axis.text.x = element_text(angle = 0),
axis.title.x = element_text(angle = 0),
axis.text.y = element_text(color = rev(heatcol_pos)))
)
print(g_pos_prov) %>% suppressWarnings()
if (saveplot == TRUE){
assign('g_pos_prov', g_pos_prov, envir = .GlobalEnv)
}
if (savepng == TRUE){
ggsave(filename = "positive_province.png",
plot = g_pos_prov,
device = "png",
width = 18.333333333333332 / 1.5,
height = 10.466666666666667 / 1.5,
units = "in")
}
}
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