"labels", "labels<-", "length", "lhs", "lhs<-",

"show", "size", "subset", "summary", "itemSupport",

"sample", "show", "size", "subset", "summary",

importFrom("stats", "predict") ## otherwise predict in stats does not work
importFrom("Matrix", "t")      ## we add/replace some methods for ngCMatrix

importFrom("stats", "predict")  ## otherwise predict in stats does not work
importFrom("Matrix", "summary") ## we need the generic
importFrom("Matrix", "t")       ## we add/replace some methods for ngCMatrix

importFrom("Matrix", "summary", "image") ## we need the generics

importFrom("stats", "predict", "aggregate")  ## we want to add methods
importFrom("Matrix", "summary", "image", "t") ## we need generics and methods
importClassesFrom("Matrix", "dgCMatrix", "ngCMatrix") ## we only need methods
"crossprod", "rowSums", "colSums") ## we only need methods

importFrom("Matrix", "drop0") ## we need function

importFrom("utils", "head")  ## we want to add methods

importFrom("stats", "predict", "aggregate", "as.dist", "cor")  ## we want to add methods
importFrom("utils", "head", "write.table")  ## we want to add methods

importFrom("stats", "predict", "aggregate", "as.dist", "cor", "rpois")  ## we want to add methods

importFrom("stats", "predict", "aggregate", "as.dist", "cor",
"rpois", "p.adjust")  ## we want to add methods

importFrom("utils", "write.table")  ## we want to add methods
"head", "tail") ## we need generics and methods
importFrom("Matrix", "drop0") ## we need functions

importFrom("Matrix", "drop0", "diag") ## we need functions

"rpois", "p.adjust", "quantile")  ## we want to add methods

# register S4 methods also as S3 methods to avoid name clashes with other packages
importFrom("generics", "union", "intersect", "setequal", "setdiff", "is.element")

export("CBA", "rules", "CBA_ruleset", "bCBA", "wCBA")

importFrom("methods", "as", "is", "new", "slot<-", "slotNames")

# these experimental methods are now in Work

import(grid) ### have to use as depends in DESCRIPTION because of vcd

import(grid) ### need to use as depends in DESCRIPTION because of vcd