A collection of R functions to perform nonparametric analysis of covariance for regression curves or surfaces. Testing the equality or parallelism of nonparametric curves or surfaces is equivalent to analysis of variance (ANOVA) or analysis of covariance (ANCOVA) for one-sample functional data. Three different testing methods are available in the package, including one based on L-2 distance, one based on an ANOVA statistic, and one based on variance estimators.
This package contains a collection of functions to perform nonparametric analysis of covariance for regression curves or surfaces. By using the package, one can test the equality of multiple functional curves or surfaces. Wild-bootstrap algorithm is applied in the package.