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Exponential_probability_plot_Weibull_Scale

class reliability.Probability_plotting.Exponential_probability_plot_Weibull_Scale

Exponential probability plot Weibull Scale

Generates an Exponential probability plot on Weibull scaled probability paper so that the distribution appears linear. This differs from the Exponential probability plot on Exponential scaled probability paper as the Weibull paper will make multiple distributions with different lambda parameters appear as parallel lines rather than as lines radiating from the origin. This change in scale has applications in ALT probability plotting.

Inputs: failures - the array or list of failure times right_censored - the array or list of right censored failure times fit_gamma - True/False. Default is False. Specify this as True in order to fit the Exponential_2P distribution and scale the x-axis to time - gamma. show_fitted_distribution - True/False. If True, the fitted distribution will be plotted on the probability plot. Defaults to True show_scatter_points - True/False. If True, the plot will include the scatter points from the failure times. Defaults to True. a - the heuristic constant for plotting positions of the form (k-a)/(n+1-2a). Default is a=0.3 which is the median rank method (same as the default in Minitab).

CI - the confidence interval for the bounds. Default is 0.95 for 95% CI. kwargs are accepted for the fitted line (eg. linestyle, label, color)

Outputs: The plot is the only output. Use plt.show() to show it.