Analysis of missing values in simultaneous linear functional relationship model for circular variables
Document Type
Article
Publication Date
1-1-2010
Abstract
Missing values arise in many research fields and is a common problem in analysis. Unlike linear data, the methods proposed to handle missing values for circular variables have not been developed. This could be contributed to the closed form of circular variables. An imputation methods based on circular mean by column and sample circular mean are proposed for the simultaneous linear functional relationship model for circular variables. Simulation studies are conducted to assess the performance of the proposed methods. The results suggest that the proposed method provide an adequate approach in handling the presence of missing values for circular variables.
Keywords
Circular data, circular mean, missing value, simultaneous linear functional relationship model
Publication Title
Scientific Research and Essays
Volume
5
Issue
12
Publisher
Academic Journals
Publisher Location
P O BOX 5170-00200 NAIROBI, VICTORIA ISLAND, LAGOS 73023, NIGERIA