如何绘制 R 中特定 x 值的箱线图？

Question

我想将不同光谱带反射率的箱线图添加到现有绘图中。每个波段都有一个相关的波长（蓝色波段 = 450，绿色波段 = 560，红色波段 = 650）假设我的乐队是

blue <- rnorm(100, mean = 50)
green <- rnorm(50, mean = 30)
red <- rnorm(150, mean = 75)
wavelength <- c(350:900)

以波长作为 x 轴的向量

如何将它们添加到特定的 x 位置？我只找到 x 值不是度量标准的示例。我现有的情节是这样的： existing plot where boxplots need to be added

我还是 R 的新手。提前致谢

Answer 1

我想这就是您要找的。或者至少是一个好的起点。

# reproducible example
set.seed(1)
blue_band  <- 450
green_band <- 560
red_band   <- 650
blue  <- rnorm(100, mean = 50)
green <- rnorm( 50, mean = 30)
red   <- rnorm(150, mean = 75)
wavelength <- c(350:900)
wavelength_value <- sort(runif(length(wavelength), 50,100))

# your plot with ggplot2
library(ggplot2)
ggplot() +
 geom_line(data = NULL, aes(x = wavelength, y = wavelength_value)) +
 geom_boxplot(data = NULL, aes(x = blue_band , y = blue ), colour = "blue" , width = 10) +
 geom_boxplot(data = NULL, aes(x = green_band, y = green), colour = "green", width = 10) +
 geom_boxplot(data = NULL, aes(x = red_band  , y = red  ), colour = "red"  , width = 10)

如何绘制 R 中特定 x 值的箱线图？

How to plot boxplots on specific x-values in R?

r

boxplot