search for: uses4prototyp

...tries to handle all internal types, please try to test out the new feature. To turn the feature on, set environment variable R_S4_Type to anything non-empty, for example in bash $ export R_S4_Type=TRUE before starting up R. You can also turn the new type on and off in R by calling methods:::.useS4Prototype(TRUE) or FALSE. (This is a temporary situation, eventually the type will be made the default.) Note the following points. 1. The type affects the prototype object for the class. Therefore what matters is whether it's turned on when the call to setClass() takes place. It has NO effect...