IsoriX (version 0.9.3)

AssignDataAlien: Simulated assignment dataset

Description

This dataset contains simulated hydrogen delta values. The data can be used as an example to perform assignments using the function isofind.

Format

A dataframe with 10 observations and 2 variables:

sample_ID	(factor)	Identification of the sample
sample_value	(numeric)	Hydrogen delta value of the tissue

See Also

isofind to perform assignments

Examples

head(AssignDataAlien)
str(AssignDataAlien)

## The examples below will only be run if sufficient time is allowed
## You can change that by typing e.g. options_IsoriX(example_maxtime = XX)
## if you want to allow for examples taking up to ca. XX seconds to run
## (so don't write XX but put a number instead!)

if (getOption_IsoriX("example_maxtime") > 30) {
  ## The following describes how we created such dataset

  ### We prepare the precipitation data
  GNIPDataDEagg <- prepsources(data = GNIPDataDE)

  ### We fit the models for Germany
  GermanFit <- isofit(data = GNIPDataDEagg)

  ### We build the isoscape
  GermanScape <- isoscape(raster = ElevRasterDE, isofit = GermanFit)

  ### We create a simulated dataset with 1 site and 10 observations
  set.seed(1L)
  Aliens <- create_aliens(
    calib_fn = list(intercept = 3, slope = 0.5, resid_var = 5),
    isoscape = GermanScape,
    raster = ElevRasterDE,
    coordinates = data.frame(
      site_ID = "Berlin",
      long = 13.52134,
      lat = 52.50598
    ),
    n_sites = 1,
    min_n_samples = 10,
    max_n_samples = 10
  )
  AssignDataAlien <- Aliens[, c("sample_ID", "sample_value")]

  ### Uncomment the following to store the file as we did
  # save(AssignDataAlien, file = "AssignDataAlien.rda", compress = "xz")
}