rvn_get_prd {RavenR}

Check period input

Description

Checks a period argument either as a character or against an xts object.

Usage

rvn_get_prd(x = NULL, prd = NULL)

Arguments

x

xts object

prd

period argument in format YYYY-MM-DD/YYYY-MM-DD as a character

Details

The function may take some combination of an xts object, a character string or both.

If a character is provided, the consistency of the character string against the YYYY-MM-DD/YYYY-MM-DD format is checked. If an xts object is provided, the period for that xts object is returned. If both are provided to the function, both checks are made and the consistency of the character period against the xts object is performed. In any case, a period character string is returned.

Value

prd argument with warnings provided if needed

See Also

rvn_theme_RavenR provides a theme for the RavenR package

Examples

data(rvn_hydrograph_data)

# check if string is a valid prd argument
rvn_get_prd(prd="2000-10-01/2002-09-30")
# rvn_get_prd(prd="2000-10-01/2002-24-30") # returns error

# get full valid prd argument for xts object
rvn_get_prd(rvn_hydrograph_data$hyd$Sub43_obs)

# check prd argument against xts object
rvn_get_prd(rvn_hydrograph_data$hyd$Sub43_obs, "2020-01-01/2020-02-01")
# rvn_get_prd(rvn_hydrograph_data$hyd$Sub43_obs, "2002-24-01/2020-02-01") # returns error
# rvn_get_prd(rvn_hydrograph_data$hyd$Sub43_obs, "20-24-01/2020-02-01")   # returns error