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International Conference on Statistics, Combinatorics and Related Areas - 7th International Conference of the Forum for Interdisciplinary Mathematics
December 19-21, 2000
Indian Institute of Technology-Bombay
Mumbai, Maharastra, India

Organizers
Satya N. Mishra (University of South Alabama), Sanjeev V. Sabnis (IIT, Bombay)

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Control Charts for Angular Observations
by
Arnab Kumar Laha
National Institute of Management, Calcutta, India

Angular observations occurs occasionally in the context of quality control. The statistical analysis of angular data is substantially different from linear data. Hence, it is not appropriate to use control charts developed for linear observations when the data are angular in nature. In this paper control chart for mean direction is developed which is appropriate for use when the observations are angular in nature. The circular normal distribution, which is the most popular probability model for angular data, is used as the underlying distribution of the angular observations. Some real life examples are discussed.

Date received: October 20, 2000

Copyright © 2000 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cafr-70.