to_ISO_8601: Coerce character strings to the Date class
In tharte/tutils: Tom's UTILity functionS

Description Usage Arguments Value Author(s) See Also Examples

Coerce character strings to Date class by judiciously guessing the strings' format

1	to_ISO_8601(strs, year.left = TRUE, american = FALSE)

`strs`	`character` string to convert to ISO 8601
`year.left`	`logical` give `to_ISO_8601` a hint: does the year occur on the left `TRUE` or on the right `FALSE`
`american`	`logical` does the string follow the bizarre American convention for writing dates, viz. MM-DD-YYYY

Date vector

Thomas P. Harte

Date, https://xkcd.com/1179

   tab<-  tutils:::make_ISO_8601_test_table()
   tab %<>% mutate(`Output`=as.character(NA))

   for (row in 1:nrow(tab)) {
       tab[row, "Output"]<- to_ISO_8601(
           str=tab[row, "Test"],
           year.left=tab[row, "year.left"],
           american=tab[row, "american"]
       ) %>% as.character
   }

   (tab %<>% mutate(`success`=`Expected`==`Output`))