SpaDES (version 1.1.4)

.fileExtensions: File extensions map

Description

How to load various types of files in R.

This function has two roles: 1) to proceed with the loading of files that are in a simList or 2) as a short cut to simInit(inputs = filelist). Generally not to be used by a user.

How to load various types of files in R.

Usage

.fileExtensions()
loadFiles(sim, filelist, ...)
## S3 method for class 'simList,missing':
loadFiles(sim, filelist, ...)
## S3 method for class 'missing,ANY':
loadFiles(sim, filelist, ...)
## S3 method for class 'missing,missing':
loadFiles(sim, filelist, ...)
.saveFileExtensions()

Arguments

sim

simList object.

filelist

list or data.frame to call loadFiles directly from the filelist as described in Details

...

Additional arguments.

See Also

inputs

Examples

# Load random maps included with package
filelist <- data.frame(
    files = dir(system.file("maps", package = "SpaDES"),
            full.names = TRUE, pattern = "tif"),
    functions = "rasterToMemory", package = "SpaDES"
)
sim1 <- loadFiles(filelist = filelist)
clearPlot()
Plot(sim1$DEM)

# Second, more sophisticated. All maps loaded at time = 0, and the last one is reloaded
#  at time = 10 and 20 (via "intervals").
# Also, pass the single argument as a list to all functions...
#  specifically, when add "native = TRUE" as an argument to the raster function
files = dir(system.file("maps", package = "SpaDES"),
            full.names = TRUE, pattern = "tif")
arguments = I(rep(list(native = TRUE), length(files)))
filelist = data.frame(
   files = files,
   functions = "raster::raster",
   objectName = NA,
   arguments = arguments,
   loadTime = 0,
   intervals = c(rep(NA, length(files)-1), 10)
)

sim2 <- loadFiles(filelist = filelist)

# if we extend the end time and continue running, it will load an object scheduled
#  at time = 10, and it will also schedule a new object loading at 20 because
#  interval = 10
end(sim2) <- 20
sim2 <- spades(sim2) # loads the percentPine map 2 more times, once at 10, once at 20