![[Stable]](figures/lifecycle-stable.svg)
datetime_as_isoweek(datetime)Arguments
- datetime
(dttm) A datetime
Value
The ISO week as int, e.g. 26
Details
Return the isoweek of a given datetime.
The isoweek is useful as a grouping variable for weekly summaries.
See also
Other helpers:
absolute_angle(),
add_dates(),
datetime_as_seasonweek(),
datetime_as_season(),
datetime_as_turtle_date(),
exclude_training_species(),
exclude_training_surveys(),
extract_possibly(),
fdate_as_tdate(),
filter_missing_site(),
filter_missing_survey(),
filter_surveys_missing_end(),
filter_surveys_requiring_qa(),
filter_wastd_season(),
get_more(),
gj_linestring_to_st_linestring(),
httpdate_as_gmt08_turtle_date(),
httpdate_as_gmt08(),
httpdate_as_season(),
humanize(),
join_tsc_sites(),
leaflet_basemap(),
map_chr_hack(),
mean_bearing(),
mis_bearing(),
odkc_works(),
read_table(),
sentencecase(),
sf_as_tbl(),
tdate_as_fdate(),
tracks_as_geojson(),
tun(),
urlize(),
verify_odkc_turtledata(),
verify_wamtram_data(),
verify_wastd_data(),
wastd_works(),
wastdr_msg_abort(),
wastdr_msg_info(),
wastdr_msg_noop(),
wastdr_msg_success(),
wastdr_msg_warn(),
wastdr_settings(),
wastdr_setup()
Examples
# These datetimes are turtle season 2017:
datetime_as_isoweek(httpdate_as_gmt08("2017-06-30T15:59:59Z")) # 26
#> [1] 26
datetime_as_isoweek(httpdate_as_gmt08("2017-06-30T16:00:00Z")) # 26
#> [1] 26
datetime_as_isoweek(httpdate_as_gmt08("2017-08-30T06:38:43Z")) # 35
#> [1] 35
datetime_as_isoweek(httpdate_as_gmt08("2017-11-01T22:00:00Z")) # 44
#> [1] 44
datetime_as_isoweek(httpdate_as_gmt08("2018-11-01T22:00:00Z")) # 44
#> [1] 44