用ggplot2和R创建排列图

本文介绍了用ggplot2和R创建排列图的处理方法，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！ 我一直在努力如何使用ggplot2软件包在R中制作帕累托图表。在制作条形图或直方图的许多情况下，我们希望按X轴排序项目。在帕累托图中，我们希望按Y轴的值降序排列项目。有没有办法让ggplot绘制由Y轴中的值排序的项目？我试着先排序数据帧，但似乎ggplot重新排序它们。 示例： val p < - ggplot（val）p + geom_bar（aes（State，Value，fill = variable），stat =identity，position =dodge）+ scale_fill_brewer（palette =Set1） 数据框val已排序，但输出如下所示： alt text http://www.cerebralmastication.com/ wb-content / uploads / 2009/11 / exp.png Hadley正确地指出，这给出了一个更好的图表来显示实际值与预测值： ggplot（val，aes（State，Value））+ geom_bar（stat =identity，subset =。（variable = =估计），fill =grey70）+ geom_crossbar（aes（ymin = Value，ymax = Value），subset =。（变量==actual）） 返回： alt text http://www.cerebralmastication.com/wp-content/uploads/2009/11/exp1.png 但它仍然不是帕累托图。任何提示？解决方案 ggplot2中的横条是按照系数中的水平排序排序的。 $ b val $ State I have been struggling with how to make a Pareto Chart in R using the ggplot2 package. In many cases when making a bar chart or histogram we want items sorted by the X axis. In a Pareto Chart we want the items ordered descending by the value in the Y axis. Is there a way to get ggplot to plot items ordered by the value in the Y axis? I tried sorting the data frame first but it seems ggplot reorders them.Example:val <- read.csv("http://www.cerebralmastication.com/wp-content/uploads/2009/11/val.txt")val<-with(val, val[order(-Value), ])p <- ggplot(val)p + geom_bar(aes(State, Value, fill=variable), stat = "identity", position="dodge") + scale_fill_brewer(palette = "Set1")the data frame val is sorted but the output looks like this:alt text http://www.cerebralmastication.com/wp-content/uploads/2009/11/exp.pngHadley correctly pointed out that this produces a much better graphic for showing actuals vs. predicted:ggplot(val, aes(State, Value)) + geom_bar(stat = "identity", subset = .(variable == "estimate"), fill = "grey70") + geom_crossbar(aes(ymin = Value, ymax = Value), subset = .(variable == "actual"))which returns:alt text http://www.cerebralmastication.com/wp-content/uploads/2009/11/exp1.pngBut it's still not a Pareto Chart. Any tips? 解决方案 The bars in ggplot2 are ordered by the ordering of the levels in the factor.val$State <- with(val, factor(val$State, levels=val[order(-Value), ]$State)) 这篇关于用ggplot2和R创建排列图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！