Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An\'alisis econom\'etrico de series temporales en Gretl: La Ley de Okun   Gretl is an econometrics package, including a shared library, a command-line
client program and a graphical user interface which offers an intuitive user
interface. This paper explains the Okun's Law, which is an empirically observed
relationship between unemployment and losses in a country's production, with
spanish data processed in Gretl.

12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math