Description Usage Arguments Details Value Author(s) References Examples
Goodness-of-fit test for a model
fitted with niqr
. The Kolmogorov-Smirnov statistic and the Cramer-Von Mises statistic
are computed. Their distribution under the null hypothesis is estimated
with Monte Carlo (see ‘Details’).
1 | test.fit.niqr(obj, R = 100)
|
obj |
an object of class “ |
R |
number of Monte Carlo replications. |
This function permits assessing goodness of fit by testing the null hypothesis that the CDF values follow a U(0,1) distribution, indicating that the model is correctly specified. Since the CDF values depend on estimated parameters, the distribution of the test statistic is not known. To evaluate it, the model is fitted on R simulated datasets generated under the null hypothesis.
a matrix with columns statistic
and p.value
,
reporting the Kolmogorov-Smirnov and Cramer-Von Mises statistic and the associated
p-values evaluated with Monte Carlo.
Gianluca Sottile gianluca.sottile@unipa.it
Frumento, P., and Bottai, M. (2015). Parametric modeling of quantile regression coefficient functions. Biometrics, doi: 10.1111/biom.12410.
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