pdb.diff {paleoDiv} | R Documentation |
Subtract one occurrence data.frame from another, for disentangling overlapping taxonomies or quantifying stem-lineage diversity.
Description
Subtract one occurrence data.frame from another, for disentangling overlapping taxonomies or quantifying stem-lineage diversity.
Usage
pdb.diff(x, subtract, id_col = x$occurrence_no)
Arguments
x |
Occurrence data from which to subtract. |
subtract |
Occurrence data frame or vector of occurrence numbers to subtract from x |
id_col |
Vector or column of x containing id to be used for determining which values are also found in subtract or subtract$occurrence_no |
Value
A data.frame() containing the difference between the two occurrence datasets, i.e. all entries that are in x but not in subtract.
Examples
data(archosauria)
pdb.union(rbind(archosauria$Ankylosauria, archosauria$Stegosauria))->Eurypoda
pdb.diff(Eurypoda, subtract=archosauria$Stegosauria)
[Package paleoDiv version 0.3.0 Index]