绘图意味着用ggplot绘制散点图上的线图 [英] Plotting means as a line plot onto a scatter plot with ggplot

问题描述

我有这个简单的数据框，为每个因子（CT）保存三个重复值（值）。我想将它绘制成geom_point，而不是以geom_line的形式表示。

  gene <-c（Ckap5 ， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， Ckap5， （0.86443,0.79032,0.86517,0.779782,0.79439,0.89221,0.93071,0.87170,0.86488,0.91133,0.87202,0.84028,0.83242,0.74016,0.86656）$ b（Ckap5，Ckap5）
值<-c $ b CT <-c（ET，ET，ET，HP，HP，HP，HT，HT，HT，LT，LT ，LT，P，P，P）
 df < -  cbind（gene，value，CT）
 df < -  data.frame（df）
  

所以，我可以制作散点图。

<$ p $ b






$ g

我如何获得代表每个因子平均值的geom_line。我已经尝试了stat_summary：

$ g $ p $ g $ p $ ggplot（df，aes（x = CT，y = value））+ geom_point（）+
stat_summary（aes（y = value，group = CT），fun.y = mean，color =red，geom =line）

但它不起作用。
geom_path：每组仅包含一个观察值，您是否需要调整组审美？

但每组有三个观察值，哪些是错误的？

Ps。

$ c $ = 1：

$ pre $ g $ pggplot（df，aes（x = CT，y = value））+ geom_point（）+
stat_summary（aes（y = value，group = 1），fun.y = mean，color =red，geom =line，group = 1）

p>

I have this simple data frame holding three replicates (value) for each factor (CT). I would like to plot it as geom_point and than the means of the point as geom_line.

gene <- c("Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5","Ckap5")
value <- c(0.86443, 0.79032, 0.86517, 0.79782, 0.79439, 0.89221, 0.93071, 0.87170, 0.86488, 0.91133, 0.87202, 0.84028, 0.83242, 0.74016, 0.86656)
CT <- c("ET","ET","ET", "HP","HP","HP","HT","HT","HT", "LT","LT","LT","P","P","P")
df<- cbind(gene,value,CT)
df<- data.frame(df)

So, I can make the scatter plot.

ggplot(df, aes(x=CT, y=value)) + geom_point()

How do I get a geom_line representing the means for each factor. I have tried the stat_summary:

ggplot(df, aes(x=CT, y=value)) + geom_point() +
stat_summary(aes(y = value,group = CT), fun.y=mean, colour="red", geom="line")

But it does not work. "geom_path: Each group consist of only one observation. Do you need to adjust the group aesthetic?"

But each group has three observations, what is wrong?

Ps. I am also interested in a smooth line.

解决方案

You should set the group aes to 1:

ggplot(df, aes(x=CT, y=value)) + geom_point() +
  stat_summary(aes(y = value,group=1), fun.y=mean, colour="red", geom="line",group=1)

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