用ggplot2绘制不同长度的矢量 [英] Plot vectors of different length with ggplot2

问题描述

我有8个不同长度的数据向量（MAP分数）（从80到500不等的文档数量）。我如何读取它们到R中并在ggplot2中将它们绘制成相同长度？考虑他们不同数量的数据点，范围从0到1.它们应该缩小/放大，以便它们适合相同的图形。并添加一个更流畅的图片。
举例来说，我得到了矢量

I've got 8 data vectors (MAP scores) of different length (different amount of documents rated), from 80 to 500. How do I read them to R and plot them to the same length in ggplot2? Consider them a different amount of datapoints ranging from 0 to 1. They should be scaled down/up so they fit into the same graph. And add a smoother to the picture. The scores range from 0 to 1. As example, I've got the vectors

vec1 = [1,0.8,0.6,0.8,0.6,0.6] # => +
vec2 = [1,0.8,0.6,0.4] # => *

和情节应该如下所示：

+   
  +*  +
    +  *+  +
           *

但带有行。

推荐答案

$ b

Here you go.

dat <- list(
  vec1 = c(1,0.8,0.6,0.8,0.6,0.6), # => +
  vec2 = c(1,0.8,0.6,0.4) # => *)
)

addX01 <- function(x, label="A"){
  n <- length(x) - 1
  data.frame(x=seq(0, 1, by=(1/n)), y=x, label=label)
}

raggedListToDf <- function(x, labels=LETTERS[seq_along(x)]){
  do.call(rbind, lapply(seq_along(x), function(i) addX01(x[[i]], label=labels[i])))
}


plotData <- raggedListToDf(dat, labels=c("*", "+"))

ggplot(plotData, aes(x, y, label=label, group=label)) + geom_text()

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