Being PC: Principal Components and Dark Energy
Astrophysics
2008-12-11 v1
Abstract
Principal component analysis is considered as an addition to the well-tested parametrization w(a)=w_0+w_a(1-a) for the dark energy equation of state. This brief note cautions against some unjustified assumptions in interpretation of PCA calculations, giving quantified examples.
Cite
@article{arxiv.0812.1794,
title = {Being PC: Principal Components and Dark Energy},
author = {Roland de Putter and Eric V. Linder},
journal= {arXiv preprint arXiv:0812.1794},
year = {2008}
}
Comments
4 pages, 3 figures