MC makes closures for defining functions in a function.
Usage
MC(f, env=NULL)
Arguments
f
function
env
a list containing functions to be used in f
Details
MC declares functions to be used in f. When f is defined inside of
a function, say fun, it cannot call other functions defined in fun.
MC can enclose the functions needed by f and make it possible for f
to call other functions defined in fun.