Wrapper function to create an individuals object using sf or SpatialPoints and data.frame.
The SpatialPoints object and the data.frame have to contain the same number of coordinates and rows.
loadIndividuals(sf, data, timeline)
a sf object
a data.frame containing individuals attributes. Rows numbers as individuals ID, columns names as dob (date of birth) | life_duration | toxic_threshold
Vector of the time line
an Individuals
object