Вот базовая графическая идея для работы.Сначала некоторые фиктивные данные:
set.seed(1)
baseball <- data.frame(pitchNumber = seq_len(50),
outcome = factor(sample(c("B","H","S","S","X","H"),
50, replace = TRUE)))
> head(baseball)
pitchNumber outcome
1 1 H
2 2 S
3 3 S
4 4 H
5 5 H
6 6 H
Затем мы определяем цвета, которые мы хотим:
## better colours - like ggplot for the cool kids
##cols <- c("red","green","blue","yellow")
cols <- head(hcl(seq(from = 0, to = 360,
length.out = nlevels(with(baseball, outcome)) + 1),
l = 65, c = 100), -1)
, затем строим pitchNumber
как высоту 1 гистограмма bar (type = "h"
), подавляя нормальные оси, и мы добавляем точки к вершинам стержней, чтобы помочь визуализации:
with(baseball, plot(pitchNumber, y = rep(1, length(pitchNumber)), type = "h",
ylim = c(0, 1.2), col = cols[outcome],
ylab = "", xlab = "Pitch", axes = FALSE, lwd = 2))
with(baseball, points(pitchNumber, y = rep(1, length(pitchNumber)), pch = 16,
col = cols[outcome]))
Добавьте ось X и рамку графика, а также легенду:
axis(side = 1)
box()
## note: this assumes that the levels are in alphabetical order B,H,S,X...
legend("topleft", legend = c("Ball","Hit","Swinging Strike","X??"), lty = 1,
pch = 16, col = cols, bty = "n", ncol = 2, lwd = 2)
Даёт это: