Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 'coexist': an R package for performing species coexistence modeling and
  analysis   This letter introduced a new R package 'coexist' which can perform species
coexistence simulation and analysis. The package was initially developed for
understanding the role of different combinations of varying species growth
rates, dispersal ability, habitat heterogeneity, and competition interaction on
influencing species coexistence under fluctuating environment. Further versions
could introduce more coexistence models under different ecological conditions.
The source package is available at the Google Code
(https://code.google.com/p/coexist/) and R CRAN repository
(http://cran.r-project.org/web/packages/coexist/).

7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol