Reads the Temporal selector from the StatCan census datasets index page,
i.e. the list of census versions whose IVT products can be catalogued with
statcan_ivt_catalogue().
Value
A tibble with one row per version: temporal (the URL parameter,
e.g. "2017" for the 2016 long-form), census (the human label, e.g.
"2016 Census - Part B (long-form questionnaire)") and census_year (the
leading 4-digit year of the label as an integer). NULL (invisibly, with a
warning) if the index could not be reached.
Examples
# Scrapes the StatCan datasets index. Returns NULL with a warning if offline
# (no error), so no try() is needed.
# \donttest{
statcan_ivt_years()
#> # A tibble: 11 × 3
#> temporal census census_year
#> <chr> <chr> <int>
#> 1 2021 2021 Census 2021
#> 2 2016 2016 Census – Part A (short-form questionnaire) 2016
#> 3 2017 2016 Census – Part B (long-form questionnaire) 2016
#> 4 2013 2011 NHS 2011
#> 5 2011 2011 Census 2011
#> 6 2006 2006 Census 2006
#> 7 2001 2001 Census 2001
#> 8 1996 1996 Census 1996
#> 9 1991 1991 Census 1991
#> 10 1986 1986 Census 1986
#> 11 1981 1981 Census 1981
# }