R矩阵和字符的条形图

Question

I am new to R, trying to learn as much as possible, but can't claim to know much at this point!

I am trying to plot the outcome , in respect of each time number from the matrix of data I have below.

no. time    outcome
1   7   win
2   7   win
3   8   win
4   8   lose
5   8   draw
6   10  win
7   10  win
8   10  lose
9   10  win
10  10  draw

So for example, for any given time, I would like to use barplot to show bars for the amount of win , lose , or draw occurrences.

I have sort of done this by creating a subset based on time , then creating a vector of the outcome , then making a table of the vector, and then plotting the table against a vector of numbers for the height.

Sorry, I can't post images, but anyway, the above works, but only for one given time . I would like to show the occurrences for all times.

I'd greatly appreciate some help if possible, even if just a point in the direction of useful reading material!

Answer 1

This task is easy with ggplot2 :

dat <- read.table(text = "no. time    outcome
1   7   win
2   7   win
3   8   win
4   8   lose
5   8   draw
6   10  win
7   10  win
8   10  lose
9   10  win
10  10  draw", header = TRUE)

library(ggplot2)
ggplot(dat, aes(x = as.factor(time), fill = outcome)) +
  geom_bar(stat = "bin")