Abstract
In the following article the author describes, from a statistical viewpoint, three methods of analyzing the irregularity of drafting by evenness of sliver: (1) the method of curve analysis of evenness by utilizing the “time series” theory, (2) the method of obtaining the variation-length curve of long-term irregularity of sliver by using the “stochastic process”, and (3) the method of obtaining the variation-length curve of short-term irregularity by utilizing “probability.”
Inter-relations among these methods are also explained.
