reproducible (version 1.1.1)

assessDataType: Assess the appropriate raster layer data type

Description

Can be used to write prepared inputs on disk.

Usage

assessDataType(ras, type = "writeRaster")
# S3 method for Raster
assessDataType(ras, type = "writeRaster")
# S3 method for RasterStack
assessDataType(ras, type = "writeRaster")
# S3 method for default
assessDataType(ras, type = "writeRaster")

Arguments

ras

The RasterLayer or RasterStack for which data type will be assessed.

type

Character. "writeRaster" (default) or "GDAL" to return the recommended data type for writing from the raster and gdalUtils packages, respectively, or "projectRaster" to return recommended resampling type.

Value

The appropriate data type for the range of values in ras. See dataType for details.

Examples

# NOT RUN {
## LOG1S
library(raster)
ras <- raster(ncol = 10, nrow = 10)
ras[] <- rep(c(0,1),50)
assessDataType(ras)

ras[] <- rep(c(TRUE,FALSE),50)
assessDataType(ras)

ras[] <- c(NA, NA, rep(c(0,1),49))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- c(0, NaN, rep(c(0,1),49))
assessDataType(ras)


## INT1S
ras[] <- -1:98
assessDataType(ras)

ras[] <- c(NA, -1:97)
assessDataType(ras)

## INT1U
ras <- raster(ncol = 10, nrow = 10)
ras[] <- 1:100
assessDataType(ras)

ras[] <- c(NA, 2:100)
assessDataType(ras)

## INT2U
ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = 64000, max = 65000))
assessDataType(ras)

## INT2S
ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -32767, max = 32767))
assessDataType(ras)

ras[54] <- NA
assessDataType(ras)

## INT4U
ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = 0, max = 500000000))
assessDataType(ras)

ras[14] <- NA
assessDataType(ras)

## INT4S
ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -200000000, max = 200000000))
assessDataType(ras)

ras[14] <- NA
assessDataType(ras)

## FLT4S
ras <- raster(ncol = 10, nrow = 10)
ras[] <- runif(100, min = -10, max = 87)
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -3.4e+26, max = 3.4e+28))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = 3.4e+26, max = 3.4e+28))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -3.4e+26, max = -1))
assessDataType(ras)

## FLT8S
ras <- raster(ncol = 10, nrow = 10)
ras[] <- c(-Inf, 1, rep(c(0,1),49))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- c(Inf, 1, rep(c(0,1),49))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -1.7e+30, max = 1.7e+308))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = 1.7e+30, max = 1.7e+308))
assessDataType(ras)

ras <- raster(ncol = 10, nrow = 10)
ras[] <- round(runif(100, min = -1.7e+308, max = -1))
assessDataType(ras)

# stack
ras <- raster(ncol = 10, nrow = 10)
ras[] <- rep(c(0,1),50)
ras1 <- raster(ncol = 10, nrow = 10)
ras1[] <- round(runif(100, min = -1.7e+308, max = -1))
sta <- stack(ras, ras1)
assessDataType(sta)
# }