eval_xg3_avail: Evaluate the availability of XG3 values per location

In inbo/watina: Querying and Processing Data from the INBO Watina Database

Evaluate the availability of XG3 values per location

Description

For a dataset as returned by get_xg3, return for each location the first and last (hydro)year and the number of (hydro)years with available XG3 values of the specified type(s) (LG3, HG3 and/or VG3).

Usage

eval_xg3_avail(data, xg3_type = c("L", "H", "V"))

Arguments

data	An object returned by get_xg3.
xg3_type	Character vector of length 1, 2 or 3. Defines the types of XG3 which are taken from data. Specifies the 'X' in 'XG3': either "L", "H" and/or "V". Defaults to "L".

Details

The column xg3_variable in the resulting tibble stands for the XG3 type + the vertical CRS (see get_xg3). xg3_variable is restricted to the requested XG3 types (LG3, HG3 and/or VG3) via the xg3_type argument, but adds an extra level "combined" whenever the combination of data (which may have both vertical CRSes) and xg3_type implies more than one requested variable. The "combined" level evaluates the combined presence of all selected XG3 variables at each location.

Value

A tibble with variables loc_code (see get_locs), xg3_variable (character; see Details), nryears, firstyear and lastyear.

See Also

Other functions to evaluate locations: eval_chem(), eval_xg3_series()

Examples

## Not run: 
watina <- connect_watina()
library(dplyr)
mylocs <- get_locs(watina, area_codes = "KAL")
mydata <-
 mylocs %>%
 get_xg3(watina, 2014)
mydata %>% arrange(loc_code, hydroyear)
eval_xg3_avail(mydata,
               xg3_type = c("L", "V"))
# Disconnect:
dbDisconnect(watina)

## End(Not run)

inbo/watina documentation built on Dec. 2, 2024, 4:02 a.m.