分組圖表，錯誤條

Question

我需要複製該地塊中的R與GGPLOT2

有誰知道怎麼辦呢？ 謝謝。

Answer 1

假設您正在使用的手段和標準偏差爲你的錯誤吧，你可以這樣做這方面的工作（我創造，我認爲可能看起來像你這樣的數據幀）：

library(tidyverse) 
df <- data.frame(num = runif(160, min = 0, max = 1), 
      class = c(rep(c(rep("t-logistic", 4), rep("NSC", 4), 
          rep("Poisson", 4), rep("PCC", 4), rep("Sparse PCC", 4), 
          rep("Sup. PCC", 4), rep("Sparse PLS", 4), rep("SVM", 4)), 5)), 
      cat = c(rep(c("A", "B", "C", "D"), 40))) 


df1 <- df %>% 
    group_by(class, cat) %>% 
    summarize(mean = mean(num), sd = sd(num)) 


ggplot(df1, aes(class, mean, color = cat))+ 
    geom_point(position = position_dodge(width = 0.6))+ 
    geom_errorbar(aes(class, ymin = (mean - 2*sd), ymax = (mean + 2*sd)), 
       position = position_dodge(width = 0.6))+ 
    theme_bw() 

，這將使你此圖：