Mapinguari (version 2.0.1)

transform_rasters: Transform raster values using custom calls.

Description

transform_rasters Applies custom expressions to transform the values of spatial rasters in a stack, taking into account temporal repetition of those rasters.

Usage

transform_rasters(raster_stack, separator = "_", ncores = 1, ...)

Value

Returns a RasterStack with layers for the predictions required.

Arguments

raster_stack

RasterStack. Stack with environmental layers.

separator

character. Character that separates variable names, years and scenarios.

ncores

integer. Number of cores to use in parallel processing.

...

New rasters created.

Examples

if (FALSE) {
FulanusEcoRasters_present <-
  get_rasters(
    var = c('prec', 'tmax', 'tmin'),
    scenarios = 'present',
    source = "C:/Users/gabri/Dropbox/Mapinguari/global_grids_10_minutes",
    ext = FulanusDistribution[c(2,3)],
    margin = 5,
    reorder = c(1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9))

# You can apply any function to subsets of rasters in the stack,
# by selecting the layers with double brackets.

transform_rasters(raster_stack = FulanusEcoRasters_present$present,
    total_1sem = sum(tmax[1:6]),
    mean_1sem = mean(tmax[1:6]),
    sd_1sem = sd(tmax[1:6]),
    total_2sem = sum(tmax[7:12]),
    mean_2sem = mean(tmax[7:12]),
    sd_2sem = sd(tmax[7:12]))
}