小编jgf*_*dsa的帖子

编辑:遵循建议

我试图基于这篇文章创建一个简单的连续事件频率图:ggplot序列模式

我想堆积相同的情节,但对于其他主题(不同的序列)主题 "aa", "bb", "cc"

示例数据集如下:

subject <- c("aa","aa","aa","aa","aa","aa","aa", "bb","bb","bb","bb","bb","bb","bb","cc","cc","cc","cc","cc","cc","cc")
event <- c("P","C","D","C","P","E","D","C","P","E","D","P","C","E","P","E","D","P","C","x","x")
freq <- c(3,2,1,4,2,1,0,3,4,1,3,3,1,2,1,3,2,1,4,0,0))

dfx <- data.frame(subject, event, freq)

我得到的结果是:

使用此代码,基于原始帖子:

library(ggplot2)

dfx$type <- factor(dfx$type)
dfx$ymin <- c(0,1,2)
dfx$ymax <- c(1,2,3)
dfx$xmax <- cumsum(dfx$count)
dfx$xmin <- c(0, head(dfx$xmax, n=-1))

plot_x <- ggplot(dfx, 
            aes(xmin=xmin, xmax=xmax, ymin=ymin, ymax=ymax,fill=type))   +geom_rect(colour="grey40", size=0.5)

png("plot_x.png", height=200, width=800)
print(plot_x)
dev.off()

我用我想绘制的内容创建了这个图像.(在excel手工制作).在这种情况下,我们有3个主题,4个事件(C,P,D,E)+1虚拟事件(X),这是创建数据帧所必需的.如您所见,每个主题的事件总数不一定相等.