airbaseFindCode: Helper function to find EEA airbase site codes
In davidcarslaw/ggopenair: Tools for the Analysis of Air Pollution Data

Description Usage Arguments Details Value Author(s) See Also Examples

Helper function to find airbase site codes

airbaseFindCode(country = c("AL", "AT", "BA", "BE", "BG", "CH", "CY", "CZ",
  "DE", "DK", "EE", "ES", "FI", "FR", "GB", "GR", "HR", "HU", "IE", "IS", "IT",
  "LI", "LT", "LU", "LV", "ME", "MK", "MT", "NL", "NO", "PL", "PT", "RO", "RS",
  "SE", "SI", "SK", "TR"), site.type = c("background", "traffic",
  "industrial", "unknown"), area.type = c("rural", "urban", "suburban",
  "unknown"), local.code = NA, city = NA, site = NA, emep = NA,
  lat = c(-90, 90), lon = c(-180, 180))

`country`	A character or vector of characters representing country code.
`site.type`	One of “background”, “traffic”, “industrial”, “unknown” representing the type of site.
`area.type`	The type of area in which the site is located. Can be “rural”, “urban”, “suburban”, “unknown”.
`local.code`	A character or vector of characters representing the local site code. For example “MY1” is the UK code for Marylebone Road.
`city`	A city name to search — using character matching (`grep`). The search string can be upper or lower case e.g. `city = "london"`. To extract several cities e.g. Copenhagen and Barcelona use `city = c("copenhagen", "barcelona")`. Note that by default any matching characters are returned, so `city = "london"` would also return Londonderry (Northern Ireland). Regular expression searches are very powerful and potentially complicated. However there are a few useful tips. To match the beginning of a name use ‘^’. So `city = "^london"` would return London and Londonderry (both begin with ‘london’). To match the end of a name use ‘$’, so `city = "london$"` would just return London but not Londonderry. The cities chosen are printed to screen to make it easy to check (and refine the search string) of the selected sites.
`site`	The name of the site or sites to search, see `city` for details of how to search.
`emep`	Select an EMEP station. Can be “yes”, “no” or `NA` (the default, selects everything).
`lat`	The latitude range to select in the form c(lower, upper).
`lon`	The longitude range to select in the form c(lower, upper).

This function helps to identify airbase site codes based on one or more criteria. The criteria include country code, site type, local site code, city, site name and latitude/longitude ranges.

A vector of airbase site codes that can be used directly in importAirbase.

David Carslaw

importAirbase, airbaseFindCode, airbaseStats and airbaseInfo

## select all sites in Denmark
## Not run: sites <- airbaseFindCode(country = "DK")

## traffic sites in Germany and the UK
sites <- airbaseFindCode(country = c("DE", "GB"), site.type = "traffic")
## End(Not run)