Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SpatEntropy: Spatial Entropy Measures in R   This article illustrates how to measure the heterogeneity of spatial data
presenting a finite number of categories via computation of spatial entropy.
The R package SpatEntropy contains functions for the computation of entropy and
spatial entropy measures. The extension to spatial entropy measures is a unique
feature of SpatEntropy. In addition to the traditional version of Shannon's
entropy, the package includes Batty's spatial entropy, O'Neill's entropy, Li
and Reynolds' contagion index, Karlstrom and Ceccato's entropy, Leibovici's
entropy, Parresol and Edwards' entropy and Altieri's entropy. The package is
able to work with both areal and point data. This paper is a general
description of SpatEntropy, as well as its necessary theoretical background,
and an introduction for new users.

23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci