本文介绍了在ggplot中编辑图例(文本)标签的处理方法,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 29岁程序员,3月因学历无情被辞! 我花了几个小时在文档和StackOverflow上查找,但没有解决方案似乎解决了我的问题。当使用 ggplot 时,我无法在图例中找到正确的文本,即使它位于我的数据框中。我尝试了 scale_colour_manual , scale_fill_manual ,其中 labels = 例如 c(T999,T888),cols。 这是我的代码: T999 T888 TY df ggplot(data = df,aes(x = T999,y = TY,pointtype =T999))+ geom_point(size = 15,color =darkblue)+ geom_point(data = df ,aes(x = T888,y = TY),color ='red',size = 10)+ theme(axis.text.x = element_text(size = 20),axis.title.x = element_text size = 20),axis.text.y = element_text(size = 20))+ xlab(Txxx)+ ylab(TY [°C])+ labs(title =temperatures,size = 15)+ scale_colour_manual(labels = c(T999,T888),values = c(darkblue,red))+ theme(legend.position =topright) 帮助就是了 非常感激! Thx。 解决方案教程@Henrik提到了一个很好的资源,用于学习如何使用 ggplot2 包。 数据示例: #将数据从宽转换为长 library(reshape2) dfm # scatterplot ggplot(data = dfm,aes(x = TY,y = value,color = variable))+ geom_point(size = 5)+ labs(title =Temperatures n,x =TY [°C],y =Txxx,color =图例标题\ n)+ scale_color_manual(labels = c(T999,T888), = c(blue,red))+ theme_bw()+ theme(axis.text.x = element_text(size = 14),axis.title.x = element_text(size = 16), axis.text.y = element_text(size = 14),axis.title.x = element_text(size = 16), plot.title = element_text(size = 20,face =大胆的,color =darkgreen)) 结果如下: 你可以使用 scale_color_hue(labels = c(T999,T888))在@ comments2739472中提到:如果你只想改变图例文本标签而不是ggplot默认调色板中的颜色, )而不是 scale_color_manual()。 I have spent hours looking in the documentation and on StackOverflow, but no solution seems to solve my problem. When using ggplot I cann't get the right text in the legend, even though it's in my dataframe. I have tried scale_colour_manual, scale_fill_manual with different values for labels= such as c("T999", "T888")", "cols".Here is my code:T999 <- runif(10, 100, 200)T888 <- runif(10, 200, 300)TY <- runif(10, 20, 30)df <- data.frame(T999, T888, TY)ggplot(data = df, aes(x=T999, y=TY, pointtype="T999")) + geom_point(size = 15, colour = "darkblue") + geom_point(data = df, aes(x=T888, y=TY), colour = 'red', size = 10 ) + theme(axis.text.x = element_text(size = 20), axis.title.x =element_text(size = 20), axis.text.y = element_text(size = 20)) + xlab("Txxx") + ylab("TY [°C]") + labs(title="temperatures", size = 15) + scale_colour_manual(labels = c("T999", "T888"), values = c("darkblue", "red")) + theme(legend.position="topright")Help would be very appreciated! Thx. 解决方案 The tutorial @Henrik mentioned is an excellent resource for learning how to create plots with the ggplot2 package.An example with your data:# transforming the data from wide to longlibrary(reshape2)dfm <- melt(df, id="TY")# creating a scatterplotggplot(data = dfm, aes(x=TY, y=value, color=variable)) + geom_point(size=5) + labs(title = "Temperatures\n", x = "TY [°C]", y = "Txxx", color = "Legend Title\n") + scale_color_manual(labels = c("T999", "T888"), values = c("blue", "red")) + theme_bw() + theme(axis.text.x=element_text(size=14), axis.title.x=element_text(size=16), axis.text.y=element_text(size=14), axis.title.x=element_text(size=16), plot.title=element_text(size=20, face="bold", color="darkgreen"))this results in:As mentioned by @user2739472 in the comments: If you only want to change the legend text labels and not the colours from ggplot's default palette, you can use scale_color_hue(labels = c("T999", "T888")) instead of scale_color_manual(). 这篇关于在ggplot中编辑图例(文本)标签的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云! 08-29 04:13