class classname : public superclassname { protected: // instance variables public: // Class (static) functions static void * classMethod1(); static return_type classMethod2(); static return_type classMethod3(param1_type param1_varName); // Instance (member) functions return_type instanceMethod1(param1_type param1_varName, param2_type param2_varName); return_type instanceMethod2WithParameter(param1_type param1_varName, param2_type param2_varName=default); }; In Objective C, It would be: @interface classname : superclassname { // instance variables } + classMethod1; + (return_type)classMethod2; + (return_type)classMethod3:(param1_type)param1_varName; - (return_type)instanceMethod1:(param1_type)param1_varName :(param2_type)param2_varName; - (return_type)instanceMethod2WithParameter:(param1_type)param1_varName andOtherParameter:(param2_type)param2_varName; @end The , +, means it is a static class method The, -, means it is an instance method. In objective C, it is import, instead of include I will include more...
In computing, R is a programming language and software environment for statistical computing and graphics. It is an implementation of the S programming language with lexical scoping semantics inspired by Scheme.
R was created by Ross Ihaka and Robert Gentleman at the University of Auckland, New Zealand, and is now developed by the R Development Core Team. It is named partly after the first names of the first two R authors (Robert Gentleman and Ross Ihaka), and partly as a play on the name of S.[1] The R language has become a de facto standard among statisticians for the development of statistical software.[2][3]
R is widely used for statistical software development and data analysis.[4] R is part of the GNU project[5], and its source code is freely available under the GNU General Public License, and pre-compiled binary versions are provided for various operating systems. R uses a command line interface, though several graphical user interfaces are available.
