pp.chen: Probability versus Probability (PP) plot for the Chen...

In reliaR: Comprehensive Tools for some Probability Distributions

Probability versus Probability (PP) plot for the Chen distribution

Description

The function pp.chen() produces a PP plot for the Chen based on their MLE or any other estimator. Also, a reference line can be sketched.

Usage

pp.chen(x, beta.est, lambda.est, main = " ", line = TRUE, ...)

Arguments

x	vector of observations
beta.est	estimate of the parameter beta
lambda.est	estimate of the parameter lambda
main	the title for the plot.
line	logical; if TRUE, a 45 degree line is sketched.
...	additional arguments to be passed to the underlying plot function.

Value

The function pp.chen() carries out a PP plot for the Chen.

References

Castillo, E., Hadi, A.S., Balakrishnan, N. and Sarabia, J.M.(2004). Extreme Value and Related Models with Applications in Engineering and Science, John Wiley and Sons, New York.

Chen, Z.(2000). A new two-parameter lifetime distribution with bathtub shape or increasing failure rate function, Statistics and Probability Letters, 49, 155-161.

Pham, H.(2006). System Software Reliability, Springer-Verlag.

See Also

qq.chen for QQ plot and ks.chen function;

Examples

## Load data sets
data(sys2)
## Maximum Likelihood(ML) Estimates of beta & lambda for the data(sys2)
## beta.est = 0.262282404, lambda.est = 0.007282371

pp.chen(sys2, 0.262282404, 0.007282371, line = TRUE)

reliaR documentation built on Nov. 5, 2025, 6:57 p.m.