Robust ANCOVA in R with package WRS2 -

the function ancboot wrs package performs one-way ancova 1 covariate using 20% trimmed means , bootstrapping:

ancboot(formula, data, tr = 0.2, nboot = 599, sm = false, fr1 = 1, fr2 = 1,         pr = true, pts = na) 

the command returns object of class ancova containing trimmed means @ 5 design points:

[1] "note: confidence intervals adjusted control fwe" [1] "but p-values not adjusted control fwe" [1] "taking bootstrap samples. please wait." $output x n1 n2 dif test ci.low ci.hi p.value [1,] 2 15 30 -1.277778 -1.846494 -3.234577 0.6790212 0.0855 [2,] 4 38 50 -1.066667 -2.139515 -2.476449 0.3431158 0.0440 [3,] 4 38 50 -1.066667 -2.139515 -2.476449 0.3431158 0.0335 [4,] 5 42 50 -1.092308 -2.256915 -2.460882 0.2762670 0.0320 [5,] 6 25 41 -1.333333 -2.341798 -2.943341 0.2766743 0.0300 $crit [1] 2.8277 

however, had expected report robust ancova conventional (parametric) ancova, including omnibus p value, 95% ci, f, , [df]. how can desired output robust ancova (i.e., trimmed means , bootstrapping)?

i checked raw source file trace of methods, appear result has no special class, means no special method can defined. ask package author/maintainer include feature or contribute source code.