Category "lubridate"

Problem with `mutate()` input `index_date` when performing time series xgboost in R

here my reproducible example mydat=structure(list(supplier = c("TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP", "TKP",

Extract time (HMS) from lubridate date time object?

I have the following datetime: t <- "2018-05-01 23:02:50 UTC" I want to split it to time and date. When I apply date(t) I get the date part. But when

How to convert months as factors while still maintaining the months in sequence?

I have a original data frame (df) containing data of around 10 years(1994-2003). The head(df) is as shown below: Sl.no Date Year Month Season

Density plot based on time of the day

I've the following dataset: https://app.box.com/s/au58xaw60r1hyeek5cua6q20byumgvmj I want to create a density plot based on the time of the day. Here is what

First day of the month from a POSIXct date time using lubridate

Given a POSIXct date time, how do you extract the first day of the month for aggregation? library(lubridate) full.date <- ymd_hms("2013-01-01 00:00:21")