Error Analysis of Distribution Curve

Abstract

11 sets of microscopical data from one same briquette samples have been converted into the Pseudo Strength Index PSI curves, each curve is consisted of 37 points. PSI curves have been used to illustrate the procedures of analyzing and calculating the error. This study shown that even in each PSI curve, there always are same points with the point error greater than 3s, that it is, however, impossible to determine which curve is an “abnormal curve” based on the characteristic (number, size and location) of abnormal points. Because Euclid distance converts the error of a curve into the error of a point, it must first calculate the Euclid distance for the series sets of PSI curves. All 11 Euclid distances is less than the distance limit error of 3s. Therefore, there are no abnormal curves in 11 PSI curves evaluated.