同一地块中不同季节的时间序列图

时间:2013-05-22 10:11:06

标签: r plot time-series

我想绘制同一地块中一年中不同季节(分组为冷或暖)的时间序列数据,并确定两个时期。我怎样才能做到这一点?

可重复数据如下:

library(gamair) 
data(chicago) 
chicago$date<-seq(from=as.Date("1987-01-01"), to=as.Date("2000-12-31"),length=5114)
data.cold <- subset(chicago, quarters(date) %in% c("Q1", "Q4"))
data.warm <- subset(chicago, quarters(date) %in% c("Q2", "Q3"))

以下这些代码将为两个时期创建两个单独的图:

with(data.cold,plot(date,death,pch=".", ylab= expression("Mortality Count"), main = "Daily Mortality in cold season"))
with(data.warm ,plot(date,death,pch=".", ylab= expression("Mortality Count"), main = "Daily Mortality in warm season"))

以下代码创建了一个图,但两个周期没有明确的划分。我的愿望是在一个地块中为两个时期创建可识别的情节。

with(chicago,plot(date,death,pch=".", ylab= expression("Mortality Count"), main = "Daily Mortality from  1987-2000"))

1 个答案:

答案 0 :(得分:1)

查看?points

with(data.cold,plot(date,death,pch=".", ylab= expression("Mortality Count"), main = "Daily Mortality in cold season"))
with(data.warm ,points(date,death,pch=".", ylab= expression("Mortality Count"), main = "Daily Mortality in warm season", col="red"))
legend("topright", c("cold", "warm"), fill=c("black", "red"))

这对你有用吗?