LSimpson {OasisR} | R Documentation |
A function to compute local Simpson's index
Description
Local Simpson's interaction index measures the probability that randomly selected individuals are not in the same group in each spatial unit.
Usage
LSimpson (x)
Arguments
x |
an object of class matrix (or which can be coerced to that class), where each column represents the distribution of a group within spatial units. The number of columns should be greater than 1 (at least 2 groups are required). You should not include a column with total population, because this will be interpreted as a group. |
Value
A vector containing the local Simpson's interaction index values for each spatial unit
References
Simpson E. H. (1949) Measurement of diversity. Nature 163:688
See Also
Other local indices: LQ
,
HLoc
, LShannon
Examples
x <- segdata@data[ ,1:2]
LSimpson (x)
[Package OasisR version 3.1.1 Index]