We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
CircSiZer: an exploratory tool for circular data.
- Authors
Oliveira, María; Crujeiras, Rosa; Rodríguez-Casal, Alberto
- Abstract
Smoothing methods and SiZer (SIgnificant ZERo crossing of the derivatives) are useful tools for exploring significant underlying structures in data samples. An extension of SiZer to circular data, namely CircSiZer, is introduced. Based on scale-space ideas, CircSiZer presents a graphical device to assess which observed features are statistically significant, both for density and regression analysis with circular data. The method is intended for analyzing the behavior of wind direction in the atlantic coast of Galicia (NW Spain) and how it has an influence over wind speed. The performance of CircSiZer is also checked with some simulated examples.
- Subjects
STATISTICAL smoothing; CIRCULAR data; REGRESSION analysis; STATISTICAL sampling; NONPARAMETRIC estimation; WIND measurement -- Statistical methods
- Publication
Environmental & Ecological Statistics, 2014, Vol 21, Issue 1, p143
- ISSN
1352-8505
- Publication type
Article
- DOI
10.1007/s10651-013-0249-0