How do I show the source code of an S4 function in a package?
Use getMethod() and specify the signature. In your case, that could be eg :
getMethod("GenTable","topGOdata")to show the GenTable method for topGOdata objects. In this case, there is only a method defined for topGOdata objects. In case there are methods with different signatures, showMethods() will tell you which ones. In your case :
showMethods("GenTable")# Function: GenTable (package topGO)# object="topGOdata"You can get the code for the signature you want by specifying it in the getMethod() function.