Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fast Kernel Smoothing in R with Applications to Projection Pursuit   This paper introduces the R package FKSUM, which offers fast and exact
evaluation of univariate kernel smoothers. The main kernel computations are
implemented in C++, and are wrapped in simple, intuitive and versatile R
functions. The fast kernel computations are based on recursive expressions
involving the order statistics, which allows for exact evaluation of kernel
smoothers at all sample points in log-linear time. In addition to general
purpose kernel smoothing functions, the package offers purpose built and
ready-to-use implementations of popular kernel-type estimators. On top of these
basic smoothing problems, this paper focuses on projection pursuit problems in
which the projection index is based on kernel-type estimators of functionals of
the projected density.

26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math