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R 创建行序列时复制行

r date

R 创建行序列时复制行,r,date,duplicates,R,Date,Duplicates,我正在尝试创建如下所示的行序列： time_index <-seq(from = as.POSIXct("2019-10-21 06:00:00",tz = "US/Eastern"), to = as.POSIXct("2019-12-31 00:00:00",tz = "US/Eastern"), by = "hour") constraint_matrix<-data.frame(row.names = time_index) TL；DR

我正在尝试创建如下所示的行序列：

time_index <-seq(from = as.POSIXct("2019-10-21 06:00:00",tz = "US/Eastern"), 
                 to = as.POSIXct("2019-12-31 00:00:00",tz = "US/Eastern"), by = "hour")

constraint_matrix<-data.frame(row.names = time_index)
TL；DR:使用
>约束\u矩阵约束\u矩阵那是什么编程语言？
row.names
是
data.frame
的一个特殊参数，用于设置row.names:所以您可以这样做：
data.frame（rownames=time\u index）
欢迎您！如果你觉得这个解释有用的话，你可以把它标出来或标对

Error in data.frame(row.names = row) : 
   duplicate row.names: 2019-11-03 01:00:00



> seq(from = as.POSIXct("2019-11-02 23:00:00",tz = "US/Eastern"), to = as.POSIXct("2019-11-03 02:00:00",tz = "US/Eastern"), by = "hour")
[1] "2019-11-02 23:00:00 EDT" "2019-11-03 00:00:00 EDT" "2019-11-03 01:00:00 EDT" "2019-11-03 01:00:00 EST" "2019-11-03 02:00:00 EST"



> format(as.POSIXlt("2019-11-03 23:00:00",tz = "US/Eastern"))
[1] "2019-11-03 23:00:00"



> constraint_matrix<-data.frame(row.names = format(time_index, usetz = TRUE))