Weibull++ Weibull Degradation Plot ptProbability

From ReliaWiki
Revision as of 23:15, 22 March 2012 by Chuck Smith (talk | contribs)
Jump to navigation Jump to search
Webnotesbar.png
Degradation Plot Probability - Weibull

The Probability plot shows the trend in the probability of failure over time. The plotting positions of the data points are determined by the failure/suspension times in the data set (x-axis) and their corresponding unreliability estimates (y-axis).

When the parameters have been calculated using rank regression analysis, the regression line is fitted to the data points on the plot in order to obtain the distribution parameters. Therefore, the plot can also be used to compare how different distributions fit a particular data set. The closer the regression line tracks the points on the plots, the better the fit.

Learn more from...

Helpblue.png the help files...
Book blue.png the theory textbook...
Articleblue.png related article(s)...
Bulbblue.png use example(s)...












Docedit.png