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).
eval_xg3_avail(data, xg3_type = c("L", "H", "V"))
| data | An object returned by |
|---|---|
| xg3_type | Character vector of length 1, 2 or 3.
Defines the types of XG3 which are taken from |
A tibble with variables loc_code (see get_locs),
xg3_variable (character; see Details),
nryears, firstyear and lastyear.
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.
Other functions to evaluate locations:
eval_chem(),
eval_xg3_series()
if (FALSE) { 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) }