如何在R语言中使用起始日期创建日期序列？

创建任何序列的最佳方法是使用`seq`函数，这同样适用于日期序列。但对于日期，我们需要以日期格式读取日期，以便R可以理解输入类型并创建相应的向量。如果我们不使用日期格式表示日期值，R将无法理解，并导致错误。

示例

 在线演示

x1<-seq(as.Date("2020-01-01"),by="day",length.out=5)
x1

输出

[1] "2020-01-01" "2020-01-02" "2020-01-03" "2020-01-04" "2020-01-05"

示例

 在线演示

x2<-seq(as.Date("2020-02-01"),by="day",length.out=29)
x2

输出

[1]  "2020-02-01" "2020-02-02" "2020-02-03" "2020-02-04" "2020-02-05"
[6]  "2020-02-06" "2020-02-07" "2020-02-08" "2020-02-09" "2020-02-10"
[11] "2020-02-11" "2020-02-12" "2020- 02-13" "2020-02-14" "2020-02-15"
[16] "2020-02-16" "2020-02-17" "2020-02-18" "2020-02-19" "2020-02-20"
[21] "2020-02-21" "2020-02-22" "2020-02-23" "2020-02-24" "2020-02-25"
[26] "2020-02-26" "2020-02-27" "2020-02-28" "2020-02-29"

示例

 在线演示

x3<-seq(as.Date("2020-02-01"),by="day",length.out=30)
x3

输出

[1]  "2020-02-01" "2020-02-02" "2020-02-03" "2020-02-04" "2020-02-05"
[6]  "2020-02-06" "2020-02-07" "2020-02-08" "2020-02-09" "2020-02-10"
[11] "2020-02-11" "2020-02-12" "2020-02-13" "2020-02-14" "2020-02-15"
[16] "2020-02-16" "2020-02-17" "2020-02-18" "2020-02-19" "2020-02-20"
[21] "2020-02-21" "2020-02-22" "2020-02-23" "2020-02-24" "2020-02-25"
[26] "2020-02-26" "2020-02-27" "2020-02-28" "2020-02-29" "2020-03-01"

示例

 在线演示

x4<-seq(as.Date("2020-03-01"),by="day",length.out=31)
x4

输出

[1] "2020-03-01" "2020-03-02" "2020-03-03" "2020-03-04" "2020-03-05"
[6] "2020-03-06" "2020-03-07" "2020-03-08" "2020-03-09" "2020-03-10"
[11] "2020-03-11" "2020-03-12" "2020-03-13" "2020-03-14" "2020-03-15"
[16] "2020-03-16" "2020-03-17" "2020-03-18" "2020-03-19" "2020-03-20"
[21] "2020-03-21" "2020-03-22" "2020-03-23" "2020-03-24" "2020-03-25"
[26] "2020-03-26" "2020-03-27" "2020-03-28" "2020-03-29" "2020-03-30"
[31] "2020-03-31"

示例

 在线演示

x5<-seq(as.Date("2020-04-01"),by="day",length.out=60)
x5

输出

[1] "2020-04-01" "2020-04-02" "2020-04-03" "2020-04-04" "2020-04-05"
[6] "2020-04-06" "2020-04-07" "2020-04-08" "2020-04-09" "2020-04-10"
[11] "2020-04-11" "2020-04-12" "2020-04-13" "2020-04-14" "2020-04-15"
[16] "2020-04-16" "2020-04-17" "2020-04-18" "2020-04-19" "2020-04-20"
[21] "2020-04-21" "2020-04-22" "2020-04-23" "2020-04-24" "2020-04-25"
[26] "2020-04-26" "2020-04-27" "2020-04-28" "2020-04-29" "2020-04-30"
[31] "2020-05-01" "2020-05-02" "2020-05-03" "2020-05-04" "2020-05-05"
[36] "2020-05-06" "2020-05-07" "2020-05-08" "2020-05-09" "2020-05-10"
[41] "2020-05-11" "2020-05-12" "2020-05-13" "2020-05-14" "2020-05-15"
[46] "2020-05-16" "2020-05-17" "2020-05-18" "2020-05-19" "2020-05-20"
[51] "2020-05-21" "2020-05-22" "2020-05-23" "2020-05-24" "2020-05-25"
[56] "2020-05-26" "2020-05-27" "2020-05-28" "2020-05-29" "2020-05-30"

示例

 在线演示

x6<-seq(as.Date("2020-05-15"),by="day",length.out=30)
x6

输出

[1] "2020-05-15" "2020-05-16" "2020-05-17" "2020-05-18" "2020-05-19"
[6] "2020-05-20" "2020-05-21" "2020-05-22" "2020-05-23" "2020-05-24"
[11] "2020-05-25" "2020-05-26" "2020-05-27" "2020-05-28" "2020-05-29"
[16] "2020-05-30" "2020-05-31" "2020-06-01" "2020-06-02" "2020-06-03"
[21] "2020-06-04" "2020-06-05" "2020-06-06" "2020-06-07" "2020-06-08"
[26] "2020-06-09" "2020-06-10" "2020-06-11" "2020-06-12" "2020-06-13"

示例

 在线演示

x7<-seq(as.Date("2020-05-15"),by="day",length.out=15)
x7

输出

[1] "2020-05-15" "2020-05-16" "2020-05-17" "2020-05-18" "2020-05-19"
[6] "2020-05-20" "2020-05-21" "2020-05-22" "2020-05-23" "2020-05-24"
[11] "2020-05-25" "2020-05-26" "2020-05-27" "2020-05-28" "2020-05-29"

示例

 在线演示

x8<-seq(as.Date("2020-06-14"),by="day",length.out=31)
x8

输出

[1] "2020-06-14" "2020-06-15" "2020-06-16" "2020-06-17" "2020-06-18"
[6] "2020-06-19" "2020-06-20" "2020-06-21" "2020-06-22" "2020-06-23"
[11] "2020-06-24" "2020-06-25" "2020-06-26" "2020-06-27" "2020-06-28"
[16] "2020-06-29" "2020-06-30" "2020-07-01" "2020-07-02" "2020-07-03"
[21] "2020-07-04" "2020-07-05" "2020-07-06" "2020-07-07" "2020-07-08"
[26] "2020-07-09" "2020-07-10" "2020-07-11" "2020-07-12" "2020-07-13"
[31] "2020-07-14"

示例

 在线演示

x9<-seq(as.Date("2020-11-01"),by="day",length.out=30)
x9

输出

[1] "2020-11-01" "2020-11-02" "2020-11-03" "2020-11-04" "2020-11-05"
[6] "2020-11-06" "2020-11-07" "2020-11-08" "2020-11-09" "2020-11-10"
[11] "2020-11-11" "2020-11-12" "2020-11-13" "2020-11-14" "2020-11-15"
[16] "2020-11-16" "2020-11-17" "2020-11-18" "2020-11-19" "2020-11-20"
[21] "2020-11-21" "2020-11-22" "2020-11-23" "2020-11-24" "2020-11-25"
[26] "2020-11-26" "2020-11-27" "2020-11-28" "2020-11-29" "2020-11-30"

示例

 在线演示

x10<-seq(as.Date("2020-12-01"),by="day",length.out=62)
x10

输出

[1] "2020-12-01" "2020-12-02" "2020-12-03" "2020-12-04" "2020-12-05"
[6] "2020-12-06" "2020-12-07" "2020-12-08" "2020-12-09" "2020-12-10"
[11] "2020-12-11" "2020-12-12" "2020-12-13" "2020-12-14" "2020-12-15"
[16] "2020-12-16" "2020-12-17" "2020-12-18" "2020-12-19" "2020-12-20"
[21] "2020-12-21" "2020-12-22" "2020-12-23" "2020-12-24" "2020-12-25"
[26] "2020-12-26" "2020-12-27" "2020-12-28" "2020-12-29" "2020-12-30"
[31] "2020-12-31" "2021-01-01" "2021-01-02" "2021-01-03" "2021-01-04"
[36] "2021-01-05" "2021-01-06" "2021-01-07" "2021-01-08" "2021-01-09"
[41] "2021-01-10" "2021-01-11" "2021-01-12" "2021-01-13" "2021-01-14"
[46] "2021-01-15" "2021-01-16" "2021-01-17" "2021-01-18" "2021-01-19"
[51] "2021-01-20" "2021-01-21" "2021-01-22" "2021-01-23" "2021-01-24"
[56] "2021-01-25" "2021-01-26" "2021-01-27" "2021-01-28" "2021-01-29"
[61] "2021-01-30" "2021-01-31"

更新于：2020年10月8日

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