[英]Evenly distribute data points in boxplot in R (using ggplot2)
I have a problem with spacing data points in a boxplot. 我在箱线图中间距数据点时遇到问题。 I use the following code.
我使用以下代码。
DF1 <- data.frame(x = c(1, 2, 3, 4, 7, 11, 20, 23, 24, 25, 30), y = c(3, 6, 12, 13, 17, 22, NA, NA, NA, NA, NA))
library(ggplot2)
library(tidyverse)
n <- 11
DF1 <- as.data.frame(DF1)
DF1 <- reshape2::melt(DF1)
DF1 %>%
group_by(variable) %>%
arrange(value) %>%
mutate(xcoord = seq(-0.25, 0.25, length.out = n())) %>%
ggplot(aes(x = variable, y = value, group = variable)) +
geom_boxplot() +
geom_point(aes(x = xcoord + as.integer(variable)))
This results in the following: 结果如下:
For x, all data points are evenly distributed left to right, but since y has fewer data points, they are not evenly distributed left to right. 对于x,所有数据点从左到右均匀分布,但是由于y的数据点较少,因此它们并不是从左到右均匀分布。 How can the above code be modified to evenly space out data points for y too?
怎样修改上面的代码以使y的数据点也均匀分布? I would appreciate any suggestions.
我将不胜感激任何建议。
I found a somewhat similar post here , but that could not help me. 我在这里找到了一个类似的帖子,但这无济于事。
Thank you. 谢谢。
The problem is the NA
values in y
. 问题是
y
的NA
值。 After you go to long format, you can simply omit them: 使用长格式后,您可以简单地省略它们:
plot_data = DF1 %>%
na.omit %>% ## add this here
group_by(variable) %>%
arrange(value) %>%
mutate(xcoord = seq(-0.25, 0.25, length.out = n()))
ggplot(plot_data, aes(x = variable, y = value, group = variable)) +
geom_boxplot() +
geom_point(aes(x = xcoord + as.integer(variable)))
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