在 R 中获取堆积面积图 [英] Getting a stacked area plot in R

问题描述

这个问题是之前问题我问过.

This question is a continuation of the previous question I asked.

现在我有一个案例，其中还有一个带有 Prop 的类别列.所以，数据集变得像

Now I have a case where there is also a category column with Prop. So, the dataset becomes like

Hour  Category        Prop2

00     A            25
00     B            59
00     A            55
00     C            5
00     B            50
...
01     C            56
01     B            45
01     A            56
01     B            35
...
23     D            58
23     A            52
23     B            50
23     B            35
23     B            15

在这种情况下，我需要在 R 中绘制一个堆积面积图，其中包含每天这些不同类别的百分比.所以，结果会是这样.

In this case I need to make a stacked area plot in R with the percentages of these different categories for each day. So, the result will be like.

        A         B       C        D
00     20%       30%     35%       15% 
01     25%       10%     40%       25%
02     20%       40%     10%       30% 
.
.
.
20 
21
22     25%       10%     30%       35%
23     35%       20%     20%       25%

所以现在我将获得每小时每个类别的份额，然后绘制这是一个堆积区域图，其中 x 轴是小时，y 轴是不同类别给出的每个类别的 Prop2 百分比颜色

So now I would get the share of each Category in each hour and then plot this is a stacked area plot like this where the x-axis is the hour and y-axis the percentage of Prop2 for each category given by the different colours

推荐答案

您可以使用 Hadley Wickham 的 ggplot2 包.

You can use the ggplot2 package from Hadley Wickham for that.

R> library(ggplot2)

示例数据集:

R> d <- data.frame(t=rep(0:23,each=4),var=rep(LETTERS[1:4],4),val=round(runif(4*24,0,50)))
R> head(d,10)
   t var val
1  0   A   1
2  0   B  45
3  0   C   6
4  0   D  14
5  1   A  35
6  1   B  21
7  1   C  13
8  1   D  22
9  2   A  20
10 2   B  44

然后你可以使用 ggplot 和 geom_area :

And then you can use ggplot with geom_area :

R> ggplot(d, aes(x=t,y=val,group=var,fill=var)) + geom_area(position="fill")

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