从动物园时间序列中选择时间范围

Question

我有以下时间序列：

library (zoo)
ts1 <- "f,c
    1,19/11/2014 12:00,0.01
    2,19/11/2014 13:00,0.01
    3,20/11/2014 15:00,0.01
    4,20/11/2014 16:00,0.01
    5,20/11/2014 17:00,0.01  
    6,20/11/2014 19:00,0.01  
    7,20/11/2014 22:00,0.20  
    8,20/11/2014 23:00,0.03
    9,21/11/2014 16:00,0.01
    10,21/11/2014 17:00,0.01"

z <- read.zoo(text = ts1, tz = "", format = "%d/%m/%Y %H:%M", sep = ",")

我想创建一个新的zoo- z1 ，它将是z的子集，其中将包括时间范围20/11/2014 15:00到20/11/2014 23:00 。 它将包括以下内容：

    3,20/11/2014 15:00,0.01
    4,20/11/2014 16:00,0.01
    5,20/11/2014 17:00,0.01  
    6,20/11/2014 19:00,0.01  
    7,20/11/2014 22:00,0.20  
    8,20/11/2014 23:00,0.03

Answer 1

library(lubridate)
window(z, start = parse_date_time("20/11/2014 15:00", orders = "%d-%m-%Y H!:M!"), 
   end = parse_date_time("20/11/2014 23:00", orders = "%d-%m-%Y H!:M!"))