有没有办法保存或导出用于绘图的 ggplot 数据？我指的不是图像本身，而是存储在全局环境中的信息。
例如:
Data <- data.frame(
X = sample(1:10),
Y = sample(c("yes", "no"), 10, replace = TRUE))
p <- ggplot(data=Data, aes(x=Y, y=X)) +
geom_bar(stat="identity")
我想要的是将“p”导出为csv或txt。这可能吗？我尝试了“write.table(p)”，但收到错误:“无法将类“c(“gg”，“ggplot”)”强制到 data.frame”
最佳答案
# Create some data and plot
library(tidyverse)
p <- as.data.frame(matrix(rnorm(20), ncol = 2,
dimnames = list(1:10, c("x", "y")))) %>%
mutate(group = as.factor(round((mean(y) - y)^2))) %>%
ggplot(aes(x, y, color = group)) +
geom_point() +
theme_bw()
# you can't write it as txt or csv:
glimpse(p)
#List of 9
# $ data :'data.frame': 10 obs. of 3 variables:
# ..$ x : num [1:10] -0.612 0.541 1.038 0.435 -0.317 ...
# ..$ y : num [1:10] 0.2065 0.9322 0.0485 -0.3972 -0.048 ...
# ..$ group: Factor w/ 3 levels "0","1","2": 1 1 1 2 1 1 3 1 3 1
# $ layers :List of 1
# but you can write it as Rds
write_rds(p, "./myplot.Rds")
# and read and plot afterwards:
read_rds("./myplot.Rds")
关于r - 保存/导出 ggplot2 数据，而不是绘图本身，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50972180/