ggplot与两个Y轴在R? [英] ggplot with two y-axis in R?
本文介绍了ggplot与两个Y轴在R?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我之前已经问过这个问题,但是有人关闭了它,表明它已经回答了.我很困惑如何在两个 Y轴
上获得两个变量 plotted
.我想在左
y轴上 plot
Level
并在 y轴上
Flow
(即辅助轴).这是我的数据,希望得到您的答复.
I have asked this question earlier but someone close it indicating that it has answer. I am pretty confuse how i can get the two variables plotted
on two Y-axis
. I want to plot
Level
on the left
y-axis and Flow
on the right y-axis
(ie., secondary axis). Here is my data and i would appreciate a response.
library(tidyverse)
library(lubridate)
set.seed(1500)
FakeData <- data.frame(Date = seq(as.Date("2020-01-01"), to = as.Date("2020-01-31"), by = "days"),
Level = runif(31, 0, 30), Flow = runif(31, 1,10))
ggplot(data = FakeData, aes(x = Date))+
geom(aes(y = Level))
这是我想看到的情节的示例输出
Here is an example output of the plot i would like to see
推荐答案
这是一个开始:
FakeData <- data.frame(Date = seq(as.Date("2020-01-01"), to = as.Date("2020-01-31"), by = "days"),
Level = runif(31, 0, 30), Flow = runif(31, 1,10))
scale_factor <- 4
ggplot(data = FakeData, aes(x = Date))+
geom_col(aes(y = Level), fill="darkgreen") +
geom_line(aes(y = Flow*scale_factor), color="blue") +
scale_y_continuous(sec.axis = sec_axis(~ .*1, labels = number_format(scale=1/scale_factor), name="Flow"))
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