verifyRasterNames: Verify Raster Names

In envirem: Generation of ENVIREM Variables

Verify Raster Names

Description

Given a SpatRaster, this function will verify the naming scheme and check that all required rasters are present.

Usage

verifyRasterNames(
  masterstack = NULL,
  solradstack = NULL,
  monthPET = NULL,
  returnRasters = FALSE
)

Arguments

masterstack	SpatRaster containing all precipitation, min temperature, max temperature, and (optionally) mean temperature variables.
solradstack	SpatRaster of monthly solar radiation
monthPET	SpatRaster of monthly potential evapotranspiration
returnRasters	if FALSE, the function checks names and reports back. If TRUE, a SpatRaster is returned with standardized names.

Details

This function checks that the following are present:

12 precipitation rasters

12 min temperature rasters

12 max temperature rasters

12 mean temperature rasters [optional]

12 solar radiation rasters

12 PET rasters [optional]

The naming scheme will be checked against the one defined via the custom naming environment. See link{?assignNames} for additional details.

The function can test the temp/precip SpatRaster and/or the solar radiation SpatRaster separately, or simultaneously.

Value

Prints messages to the console if returnRasters = FALSE, If returnRasters = TRUE, then a SpatRaster is returned. This SpatRaster will not include rasters that were deemed unnecessary.

Author(s)

Pascal Title

Examples

# Find example rasters
rasterFiles <- list.files(system.file('extdata', package='envirem'), full.names=TRUE)

# create stack of temperature and precipitation rasters
# and stack of solar radiation rasters
solradFiles <- grep('solrad', rasterFiles, value=TRUE)
worldclim <- rast(setdiff(rasterFiles, solradFiles))
solar <- rast(solradFiles)

# modify naming
names(worldclim) <- gsub('tmin_', 'minTemp', names(worldclim))
names(worldclim) <- paste0(names(worldclim), '_v1.0')
names(solar) <- gsub('et_solrad_', 'solar_', names(solar))

# but don't specify this change
namingScheme()

# Run check
verifyRasterNames(masterstack = worldclim, solradstack = solar, returnRasters = FALSE)

# But if we specify our naming scheme
assignNames(tmin = 'minTemp##_v1.0', tmax = 'tmax_##_v1.0', tmean = 'tmean_##_v1.0', 
	solrad = 'solar_##', precip = 'prec_##_v1.0')
namingScheme()

verifyRasterNames(masterstack = worldclim, solradstack = solar, returnRasters = FALSE)

# set back to defaults
assignNames(reset = TRUE)

envirem documentation built on Aug. 26, 2023, 1:07 a.m.