pbk <- function(){
#' @title Phi Beta Kappa
#' @description pbk shows the percentage of each graduating class that is awarded Phi Beta Kappa.
#' @return A bar graph showing the percentage of each graduating class awarded Phi Beta Kappa
#' @usage pbk()
#' @import dplyr ggplot2
#' @export
a <- allyrs %>%
select(grad.year, pbk) %>%
group_by(grad.year, pbk) %>%
summarize(count = n()) %>%
ungroup() %>%
group_by(grad.year) %>%
mutate(yrly.count = sum(count)) %>%
filter(pbk == TRUE) %>%
mutate(yrly.pct = 100*count/yrly.count)
b <- a %>%
ggplot(aes(grad.year, yrly.pct)) +
geom_bar(stat = "identity") +
ggtitle("Phi Beta Kappa") +
xlab("Graduation Year") +
ylab("Percent Phi Beta Kappa") +
labs(caption = "Proportion of Phi Beta Kappa students each year.
2003 has the highest percentage and 2006 has the lowest.")
return(b)
}
dept_honors<- function(){
#' @title Departmental Honors
#' @description dept_honors shows the total number of graduates that earned some level of departmental honors, by major and gender.
#' @return A bar graph showing the total number of graduates that earned some level of departmental honors, by major and gender.
#' @usage dept_honors()
#' @import dplyr ggplot2 stringr
#' @export
a <- allyrs %>%
select(first.honors.dept, gender) %>%
rename(honors.dept = first.honors.dept) %>%
filter(is.na(honors.dept) == FALSE) %>%
mutate(honors.dept = ifelse(str_detect(honors.dept, "Contract") == TRUE,
"Contract Major", honors.dept)) %>%
group_by(honors.dept, gender) %>%
summarize(count = n()) %>%
arrange(desc(honors.dept))
b <- allyrs %>%
select(second.honors.dept, gender) %>%
rename(honors.dept = second.honors.dept) %>%
filter(is.na(honors.dept) == FALSE) %>%
mutate(honors.dept = ifelse(str_detect(honors.dept, "Contract") == TRUE,
"Contract Major", honors.dept)) %>%
group_by(honors.dept, gender) %>%
summarize(count = n()) %>%
arrange(desc(honors.dept))
c <- left_join(a, b, by = c("honors.dept", "gender")) %>%
group_by(honors.dept, gender) %>%
mutate(count = sum(count.x ,count.y, na.rm = TRUE)) %>%
select(-count.x, -count.y)
d <- c %>%
ggplot(aes(honors.dept, count, fill = gender)) +
geom_bar(stat = "identity", position = "dodge") +
ggtitle("Departmental Honors") +
xlab("Major") +
ylab("Number of Graduates") +
theme(axis.text.x = element_text(angle = 90, hjust = 1)) +
labs(caption = "Total number of graduates earning some level of departmental honors, by major.
Gender is predicted from the R gender package.") +
scale_fill_manual(values = c("#512698", "#fdcc09"), na.value="dimgray")
return(d)
}
latin_honors_gender <- function(){
#' @title Latin Honors and Gender
#' @description latin_honors_gender shows the total number of students of each predicted gender
#' who received each level of latin honors.
#' @return A bar graph showing the total number of students of each predicted gender
#' who received each level of latin honors.
#' @usage latin_honors_gender()
#' @import dplyr ggplot2
#' @export
a <- allyrs %>%
select(latin.honors, gender) %>%
mutate(latin.honors = ifelse(is.na(latin.honors) == TRUE, "None", latin.honors)) %>%
group_by(latin.honors, gender) %>%
summarize(count = n())
z <- a %>%
ggplot(aes(latin.honors, count, fill = gender)) +
geom_bar(stat = "identity", position = "dodge") +
ggtitle("Latin Honors and Gender 2000-2016") +
xlab("Latin Honors") +
ylab("Number of Graduates") +
guides(fill = guide_legend(title = "Gender")) +
labs(caption = "The number of students of each gender acheiving each level of latin honors.") +
ylim(0, 3000) +
scale_fill_manual(values = c("#512698", "#fdcc09"), na.value="dimgray")
return(z)
}
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