[英]Individual labelling for each group in a clustered stacked bar graph in R
使用此答案的帮助: 分组堆积条形图:有关堆栈顺序、图形水平方向和组的 label 的问题
test <- data.frame(person=c("Q8.3. Patients presenting to me, who are suitable \n for referral to social prescribing services, \n have decreased.\n GP (n = 72) \n LW (n = 101)",
"Q8.5. Patients feel well-supported during COVID-19 \n for their emotional and social needs.\n GP (n = 70) \n LW (n = 125)",
"Q9.1. Less patients are interested in being \n referred to social prescribing services.\n GP (n = 55) \n LW (n = 100)",
"Q9.4. Online services are available to replace community \n groups and statutory services that are \n not available. \n GP (n = 60) \n LW (n = 133)",
"Q9.6. Link workers have great influence on the services \n people are referred to.\n GP (n = 58) \n LW (n = 131)"),
value1=c(22.22, 8.57, 23.63, 31.66, 79.31), # GP Agree
value2=c(54.16, 77.14, 58.18, 40, 13.79) , # GP Disagree
value3=c(23.61, 14.28, 18.18, 28.33, 6.89), # GP Neutral
value4=c(19.8, 48, 9, 51.87, 69.46), # LW Agree
value5=c(64.35,34.4,70,28.57,14.5), # LW Disagree
value6=c(15.84,17.6,21,19.54,16.03)) # LW Neutral
library(reshape2) # for melt
melted <- melt(test, "person")
melted$cat <- ''
melted[melted$variable == 'value1' | melted$variable == 'value2' | melted$variable == 'value3',]$cat <- "GP"
melted[melted$variable == 'value4' | melted$variable == 'value5'| melted$variable == 'value6',]$cat <- "LW"
melted$Response <- ''
melted[melted$variable %in% sprintf("value%i",c(1,4)),]$Response <- "Agree"
melted[melted$variable %in% sprintf("value%i",c(2,5)),]$Response <- "Disagree"
melted[melted$variable %in% sprintf("value%i",c(3,6)),]$Response <- "Neutral"
melted$Response <- factor(melted$Response, c("Agree", "Neutral","Disagree"))
p = ggplot(melted, aes(x = cat, y = value, fill = Response))
p + geom_bar(stat = 'identity', position = 'stack') +
geom_text(aes(label = paste0(value, "%")), position = position_stack(vjust = .5)) +
ylab("Percentage of responses")+
xlab("Population")+
facet_grid(person~.) +
scale_fill_manual(values = c("#488f31","#ffeb8a","#de425b")) +
theme(panel.background = element_rect(fill = 'white'),
strip.text.y = element_text(angle = 0)) +
coord_flip()
我的问题是:如何获取组(GP、LW)的标签以显示它们旁边的样本量? 我想知道我可以在代码中的哪个位置添加这样一个数组,它会像这样的图表 label。
例如,第二个柱将有 GP (n = 72),而第一个柱将在右侧写入 LW (n = 101),而不仅仅是 GP 和 LW。
谢谢你。
这可以像这样实现:
string::str_extract
从您的person
变量中提取包括样本大小的类别标签并将其分配给cat
。scales = "free_y"
添加到facet_grid
。 编辑可以使用例如gsub
从问题中删除样本大小:
library(reshape2) # for melt
library(ggplot2)
library(stringr)
melted$cat <- ifelse(melted$cat == "GP",
stringr::str_extract(melted$person, "GP \\(n = \\d+\\)"),
stringr::str_extract(melted$person, "LW \\(n = \\d+\\)"))
melted$person <- gsub("(GP|LW) \\(n = \\d+\\)", "", melted$person)
p = ggplot(melted, aes(x = cat, y = value, fill = Response))
p + geom_bar(stat = 'identity', position = 'stack') +
geom_text(aes(label = paste0(value, "%")), position = position_stack(vjust = .5)) +
ylab("Percentage of responses")+
xlab("Population")+
facet_grid(person~., scales = "free_y") +
scale_fill_manual(values = c("#488f31","#ffeb8a","#de425b")) +
theme(panel.background = element_rect(fill = 'white'),
strip.text.y = element_text(angle = 0)) +
coord_flip()
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