在ggplot 2中顯示堆疊條形圖上的數(shù)據(jù)值我想在ggplot 2中的堆疊條形圖上顯示數(shù)據(jù)值。這是我嘗試的代碼Year <- c(rep(c("2006-07", "2007-08", "2008-09", "2009-10"), each = 4))Category <- c(rep(c("A", "B", "C", "D"), times = 4))Frequency <- c(168, 259, 226, 340, 216, 431, 319, 368, 423, 645, 234, 685, 166, 467, 274, 251)Data <- data.frame(Year, Category, Frequency)library(ggplot2)p <- qplot(Year, Frequency, data = Data, geom = "bar", fill = Category, theme_set(theme_bw()))p + geom_text(aes(label = Frequency), size = 3, hjust = 0.5, vjust = 3, position = "stack") 我想在每個部分的中間顯示這些數(shù)據(jù)值。在這方面的任何幫助都將受到高度贊賞。謝謝
2 回答

Qyouu
TA貢獻(xiàn)1786條經(jīng)驗(yàn) 獲得超11個贊
ggplot 2.2.0
position = position_stack(vjust = 0.5)
geom_text
.
ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) + geom_bar(stat = "identity") + geom_text(size = 3, position = position_stack(vjust = 0.5))
position_stack()
position_fill()
ggplot
:
library(ggplot2)library(plyr)# calculate midpoints of bars (simplified using comment by @DWin)Data <- ddply(Data, .(Year), transform, pos = cumsum(Frequency) - (0.5 * Frequency))# library(dplyr) ## If using dplyr... # Data <- group_by(Data,Year) %>%# mutate(pos = cumsum(Frequency) - (0.5 * Frequency))# plot bars and add textp <- ggplot(Data, aes(x = Year, y = Frequency)) + geom_bar(aes(fill = Category), stat="identity") + geom_text(aes(label = Frequency, y = pos), size = 3)

隔江千里
TA貢獻(xiàn)1906條經(jīng)驗(yàn) 獲得超10個贊
library(grid)library(gridExtra)library(plyr)# create a new column with proportionsprop <- function(x) x/sum(x)Data <- ddply(Data,"Year", transform,Share=prop(Frequency))# create the component graphicstotals <- ggplot(Data,aes(Year,Frequency)) + geom_bar(fill="darkseagreen", stat="identity") + xlab("") + labs(title = "Frequency totals in given Year")proportion <- ggplot(Data, aes(x=Year,y=Share, group=Category, colour=Category)) + geom_line() + scale_y_continuous(label=percent_format())+ theme(legend.position = "bottom") + labs(title = "Proportion of total Frequency accounted by each Category in given Year")# bring them togethergrid.arrange(totals,proportion)
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