Expand the left-hand side of a formula

Expands the contents of functions used in a formula.

expandFun(formula, ...)

Arguments

formula

A mathematical expression (see examples and plotFun())

...

additional parameters

Value

A list with the new expanded formula and the combined formals

Examples

f=makeFun(x^2~x)
expandFun(f(z)~z) #Returns z^2~z
#> Error in eval(exp[[1]]): object 'f' not found