在geom_line上显示数据值

作者: 氷寒
发布时间: 2024-12-20 10:19:25 (2月前)
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哈哈哈哈 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <P> 主要技巧是 <a href="https://stackoverflow.com/questions/2185252/reshaping-data-frame-from-wide-to-long-format"> 将数据从宽到长格式重塑 </A> 。然后一切变得更加简单甚至直观。 </p> <pre> <code> library(tidyverse) library(ggplot2) errors_prob_3 %>% gather(key = "variable", value = "value", -ID) %>% ggplot(aes(x = ID, y = value, colour = variable)) + geom_line() + geom_point() + geom_text(aes(label = round(value, 1)), vjust = "inward", hjust = "inward", show.legend = FALSE) + labs(x = "Number of predictors", y = "Mean/sd value", title = "Plot of the training and test cv error") + scale_color_discrete(name = "Legend", labels = c("Train mean", "Train sd", "Test mean", "Test sd")) </code> </pre> <P> <a href="https://i.stack.imgur.com/UkJll.png" rel="nofollow noreferrer"> <img src =“https://i.stack.imgur.com/UkJll.png”alt =“在此处输入图片说明”/> </A> </p> </DIV>

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