Weibull++ Weibull Degradation Plot ptProbability: Difference between revisions
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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). | 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. | 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. | ||
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| [http://help.synthesis8.com/weibull_alta8/life_data_analysis_plots.htm the help files...] | |||
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| [http://reliawiki.com/index.php/Weibull%2B%2B_Plots the theory textbook...] | |||
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Revision as of 18:53, 7 March 2012
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| Degradation Plot Probability - Weibull |
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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...
|
the help files... |
|
the theory textbook... |
|
related article(s)... |
|
use example(s)... |