Inspect whether a given variable contains more than just non-missing or non-zero values for a selected group of countries in the LIS or LWS databases.

Usage

variable_exists(variable, iso2, database = "lis", share = FALSE, ...)

Arguments

variable: A unit-length character vector containing specified LIS/LWS variables.
iso2: A character vector with valid iso2 codes of countries present in LIS/LWS.
database: A character value. One of "lis" (default), "lws", or "lcs".
share: A logical value indicating whether to output the share of datasets, across the entire time series for each country, where a variable has more than just non-missing or non-zero values, instead of displaying its presence year by year.

Value

A list made of character vectors. If share = TRUE, then a list with a numeric vector.

Examples

variable_exists(variable = "area_c", iso2 = "br")
#> $Brazil
#>  1981  1982  1983  1984  1985  1986  1987  1988  1989  1990  1992  1993  1995 
#> "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" 
#>  1996  1997  1998  1999  2001  2002  2003  2004  2005  2006  2007  2008  2009 
#> "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" 
#>  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022 
#> "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" 
#> 
variable_exists(variable = "basb", iso2 = c("fr", "de", "us", "uk"), lws = TRUE)
#> Warning: The argument 'lws' is deprecated and no longer used. Please use 'database' instead, which accepts "lis" (default), "lws", or "lcs".
#> $France
#>  2009  2014  2017  2020 
#>  "No" "Yes" "Yes" "Yes" 
#> 
#> $Germany
#> 2002 2007 2012 2017 
#> "No" "No" "No" "No" 
#> 
#> $`United States`
#>  1995  1998  2001  2004  2007  2010  2013  2016  2019  2022 
#> "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" 
#> 
#> $`United Kingdom`
#>  2007  2009  2011  2013  2015  2017  2019  2021 
#> "Yes" "Yes" "Yes" "Yes" "Yes" "Yes" "Yes"  "No" 
#> 
variable_exists(variable = "basb", iso2 = c("fr", "de", "us", "uk"), lws = TRUE, share = TRUE)
#> Warning: The argument 'lws' is deprecated and no longer used. Please use 'database' instead, which accepts "lis" (default), "lws", or "lcs".
#> $`Share of years across the series in LWS where: basb has values other than zeros and missings.`
#>         France        Germany United Kingdom  United States 
#>           75.0            0.0           87.5          100.0 
#>