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wp_wday: Function to extract the day of the week

Description

Function to extract the day from a timestamp of e.g. class POSIXlt, POSIXct, Date, or character. If the option is of type character it should be in the form of yyyy-mm-dd.

Usage

wp_wday(timestamp, startmonday = T)
# S3 method for POSIXlt
wp_wday(timestamp, startmonday = T)
# S3 method for default
wp_wday(timestamp, startmonday = T)

Arguments

timestamp

Some sort of timestamp e.g. of class POSIXlt, POSIXct, Date, or character. If the option is of type character it should be in the form of yyyy-mm-dd.

startmonday

whether the week should start on Monday (TRUE, the default) or it should start on Sunday (FALSE)

Methods (by class)

  • POSIXlt: method for POSIXlt

  • default: method for everything as.POSIXlt