Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Systematic Study of Weather Variables for Rainfall Detection   Numerous weather parameters affect the occurrence and amount of rainfall.
Therefore, it is important to study these parameters and their interdependency.
In this paper, different weather and time-related variables -- relative
humidity, solar radiation, temperature, dew point, day-of-year, and time-of-day
are analyzed systematically using Principal Component Analysis (PCA). We found
that four principal components explain a cumulative variance of 85%. The first
two principal components are applied to distinguish rain and no-rain scenarios
as well. We conclude that all 7 variables have similar contribution towards
rainfall detection.

15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math