在ggplot中使用..prop ..时如何绘制彩条图? [英] How to color bar plots when using ..prop.. in ggplot?
问题描述
我正在尝试在ggplot上绘制显示比例的条形图.我使用以下方式调用剧情:
v2<-ggplot(data = Visual2_Data,映射= aes(x =违反,y = ..prop ..,组= 1,填充=违反))+geom_bar()+facet_grid(〜driver_race)+scale_fill_manual(值= c(红色",绿色",黄色",蓝色",粉红色",紫色"))+主题(axis.text.x = element_text(angle = 90))
我的结果如下:
尽管使用 fill
和 scale_fill_manual
,这些条仍然是默认颜色.
我将 .. count ..
用作y变量而不是 .prop ..
并删除 group = 1
:
v2<-ggplot(data = Visual2_Data,映射= aes(x =违反,y = ..count ..,fill =违反))+geom_bar()+facet_grid(〜driver_race)+scale_fill_manual(值= c(红色",绿色",黄色",蓝色",粉红色",紫色"))+主题(axis.text.x = element_text(angle = 90))
我得到以下信息:
这就是我想要的,除了我想在第一张图中使用 y = ..prop ..
和 group = 1
来具有这些颜色使用 y = ..counts ..
的过程.那么有办法吗?
预先感谢
为重现性:
我必须注意,这是一个相对较大的数据集.
我处理来自此来源的Colorado数据:
或者,我总是喜欢预先进行预处理.您可以执行以下操作:
库(data.table)df<-setDT(copy(diamonds))[,..(N = .N),by =.(切割,颜色)] [,.(prop = N/sum(N),color = color),通过=切]ggplot(data = df,映射= aes(x =颜色,y =道具,填充=颜色))+geom_col()+facet_grid(〜cut)+scale_fill_manual(值= c(红色",绿色",黄色",蓝色",粉红色",紫色",黑色"))+主题(axis.text.x = element_text(angle = 90))
I'm trying to color a bar plot on ggplot that shows the proportions. I call the plot using:
v2 <- ggplot(data = Visual2_Data,
mapping = aes(x = violation, y = ..prop.., group = 1, fill = violation)) +
geom_bar() +
facet_grid(~driver_race) +
scale_fill_manual(values = c("red", "green", "yellow", "blue", "pink", "purple"))+
theme(axis.text.x = element_text(angle=90))
and my result is the following:
Despite using the fill
and scale_fill_manual
, the bars are still the default color.
As soon as I use ..count..
as y variable instead of ..prop..
and delete group = 1
:
v2 <- ggplot(data = Visual2_Data,
mapping = aes(x = violation, y = ..count.., fill = violation)) +
geom_bar() +
facet_grid(~driver_race) +
scale_fill_manual(values = c("red", "green", "yellow", "blue", "pink", "purple"))+
theme(axis.text.x = element_text(angle=90))
I get the following:
and this is what I want, except I would like to have these colors in the first plot using y = ..prop..
and group = 1
, instead of using y = ..counts..
.
So is there a way to do this?
Thanks in advance
For reproducibility:
I have to note that it is a relatively big data set.
I work with the Colorado data from this source:
https://openpolicing.stanford.edu/data/
I tidied it a bit:
data <- read_csv() #insert data here
Visual2_Data <- data %>%
subset(out_of_state == FALSE) %>%
select(county_name, county_fips, police_department, driver_gender,
driver_age, driver_race, violation, search_conducted,
contraband_found, stop_outcome, is_arrested) %>%
drop_na(county_name) %>%
filter(driver_race != "Other",
violation %in% c("Lights", "Speeding", "Safe movement", "License",
"Seat belt", "Registration/plates"))
# After this I used the code for v2 which already is described above.
v2 <- ggplot(data = Visual2_Data, etcetera)
If you replace the fill = ...
with fill = factor(..x..)
you get the desired result:
ggplot(diamonds, aes(x = color, y = ..prop.., fill = factor(..x..), group = 1)) +
geom_bar() +
facet_grid(~cut)+
scale_fill_manual(values = c("red", "green", "yellow", "blue", "pink", "purple", "black")) +
theme(axis.text.x = element_text(angle=90))
Alternatively, I always like to do my pre-processing beforehand. You could do this with:
library(data.table)
df <- setDT(copy(diamonds))[, .(N = .N), by = .(cut, color)][, .(prop = N/sum(N), color = color), by = cut]
ggplot(data = df,
mapping = aes(x = color, y = prop, fill = color)) +
geom_col() +
facet_grid(~cut) +
scale_fill_manual(values = c("red", "green", "yellow", "blue", "pink", "purple", "black"))+
theme(axis.text.x = element_text(angle=90))
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