| import(methods) | |
| import(graphics) | |
| ## instead of just | |
| ## importFrom("graphics", plot) # because we want to define methods on it | |
| ## *Still* do not want warning from this | |
| ## as "mgcv": this loads Matrix, but does not attach it ==> Matrix methods "semi-visible" | |
| importFrom(Matrix, t,mean,colMeans,colSums) | |
| exportClasses("classA", "classApp") # mother and sub-class R/pkgA.R | |
| exportMethods("plot") | |
| export(nil) | |
| export(search)# --> "conflict message" |