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#' Function to create a bullet chart with a line chart in the same graphical
#' frame; to compare different baselines for gender analysis.
#'
#' @name bullet_line_chart
#'
#' @param data_df, dataframe in output from \code{\link{percent_df}}
#' @param baseline_female, numeric vector containing the baseline for each level
#' @param x_label, label for x axis for both charts
#' @param y_bullet_chart_label, label for y axis of the bullet chart
#' @param baseline_label, label used to define the baseline name.
#' @param line_chart_df, data frame containing the total number of submissions
#' @param line_chart_scaling, factor of conversion for second y-axis
#' @param y_line_chart_label, label the y-axis of the line chart
#' @param line_label, label used to define the line chart.
#' @return The function create a bullet chart containing the percentage of male
#' and female with the corresponding baseline for the level defined in
#' \code{\link{percent_df}}. The total number of submissions are displayed on
#' the top of the bullet chart.
#' @importFrom ggplot2 geom_point
#' @importFrom ggplot2 geom_line
#' @importFrom ggplot2 scale_y_continuous
#' @importFrom ggplot2 sec_axis
#' @importFrom ggplot2 .pt
#' @export
bullet_line_chart <- function(data_df, baseline_female,
x_label, y_bullet_chart_label, baseline_label,
line_chart_df, line_chart_scaling,
y_line_chart_label,
line_label) {
Level <- n <- label <- x_values <- y_values <- gender <- pos <- NULL
lower_CI <- upper_CI <- NULL
data_df$gender <- factor(gsub("_percentage", "", data_df$gender),
levels = c("male", "female"))
data_df$pos <- ifelse(data_df$gender == "male", 90, data_df$y_values)
data_df$label <- paste0(data_df$y_values, "")
data_df$label <- ifelse(data_df$gender == "male", data_df$significance,
data_df$label)
data_df$label <- ifelse(data_df$label == "Significant", "*", data_df$label)
baseline_df <- data.frame(Level = unique(data_df$x_values),
baseline = baseline_female)
plot <- ggplot() +
geom_bar(aes(x = Level, y = baseline, fill = "#D7191C"),
data = {{baseline_df}}, width = 0.7, stat = "identity",
show.legend = FALSE) +
geom_bar(aes(x = x_values, y = y_values, fill = gender),
data = {{data_df}}, stat = "identity", width = 0.4) +
geom_line(aes(x = x_values, y = n / line_chart_scaling, group = 1,
color = line_label), size = 0.15, data = {{line_chart_df}}) +
scale_y_continuous(name = {{y_bullet_chart_label}},
sec.axis = sec_axis(~ . * {{line_chart_scaling}},
name = {{y_line_chart_label}})) +
scale_fill_manual(values = c(alpha("#D7191C", .4), alpha("#512B58", .7),
alpha("#2A7886", 0.7)),
label = c({{baseline_label}}, "Female", "Male"),
name = "") +
scale_color_manual(name = NULL, values = "#004976", label = {{line_label}}) +
guides(fill = guide_legend(override.aes = list(alpha = 0.5))) +
geom_text(data = {{data_df}}, aes(x = x_values, y = pos,
label = label),
size = 12 / .pt, vjust = -0.5) +
geom_errorbar(data = {{data_df}}, aes(x = x_values,
ymin = lower_CI,
ymax = upper_CI), width = 0.3) +
theme_gd() + xlab({{x_label}}) + ylab({{y_bullet_chart_label}})
plot
}
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