gamm4.test is a package supplied with R for testing nonlinear curve and surface functions.The main testing routine is gam.test.
The major advantages of this packages are:
Arguements formulated are consistent with semiparametric regression estimating package "mgcv" and "gamm4", so that people who are familiar with these ones can easily adopt our major function gam.grptest()
.
We allow parallel computing by specifying parallel = TRUE
within function gam.grptest
to save computational time if needed.
plot.gamtest()
function plots semiparametric estimated nonlinear curves and surfaces via R package "plotly". Option type=plotly.persp
provides a 3-D interactive plot with estimated regression functions for individual groups. Also, test.statistic = TRUE
provides the empirical distribution of the test statistic under the null hypothesis of equal regression function.
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