Title of article
On Discordance Test for the Wrapped Normal Data
Author/Authors
Rambli, Adzhar university of malaya - Institute of Mathematical Sciences, Malaysia , Ibrahim, Safwati university of malaya - Institute of Mathematical Sciences, Malaysia , Abdullah, Mohd Ikhwan university of malaya - Institute of Mathematical Sciences, Malaysia , Mohamed, Ibrahim university of malaya - Institute of Mathematical Sciences, Malaysia , Hussin, Abdul Ghapor university of malaya - Centre for Foundation studies in Sciences, Malaysia
From page
769
To page
778
Abstract
This paper focuses on detecting outliers in the circular data which follow the wrapped normal distribution. We considered four discordance tests based on M, C, D and A statistics. The cut-off points of the four tests were obtained and the performance of the detection procedures was studied via simulations. In general, we showed that the discordance test based on the A statistic outperforms the other tests in all cases. For illustration, the city of Kuantan wind direction data set was considered
Keywords
A statistics , circular , discordance , outlier , wrapped normal distribution
Record number
2555434
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