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Intro to cstime

Chi Zhang

2021-09-15

cstime provides date time functions for public health purposes.

The core functionality is consistent time conversion between :

It also provides functions to generate rolling dates for computing the weekly, bi-weekly, 4 week averages.

cstime is part of the csverse package suite.

library(cstime)
#> cstime 2023.5.3
#> https://www.csids.no/cstime/
library(magrittr)

To convert a date to isoyear:

date_to_isoyear_c('2021-01-01')
#> [1] "2020"

To convert a isoyearweek string to isoyear/isoweek:

isoyearweek_to_isoyear_c("2021-02")
#> [1] "2021"
isoyearweek_to_isoweek_c("2021-02")
#> [1] "02"

To convert a season week to isoweek (and reverse):

seasonweek_to_isoweek_n(10)
#> [1] 10
isoweek_to_seasonweek_n(1)  
#> [1] 24

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.