These functions compute the value of the function at the vertices points
stored in the current simplex object and stored them back into the simplex
object. optimsimplex.computefv determines how many vertices are stored
in the simplex object and delegates the calculation of the function values to
optimsimplex.compsomefv.
optimsimplex.computefv(this = NULL, fun = NULL, data = NULL)
optimsimplex.compsomefv(this = NULL, fun = NULL, indices = NULL, data = NULL)The current simplex object, containing the nbve x n matrix of
vertice coordinates (i.e. x element), where n is the
dimension of the space and nbve the number of vertices.
The function to compute at vertices. The function is expected to have the following input and output arguments:
| myfunction <- function(x, this){ |
| ... |
| return(list(f=f,this=this)) |
where x is a row vector and this a user-defined data, i.e. the data
argument.
A user-defined data passed to the function. If data is provided,
it is passed to the callback function both as an input and output argument.
data may be used if the function uses some additionnal parameters. It
is returned as an output parameter because the function may modify the data
while computing the function value. This feature may be used, for example,
to count the number of times that the function has been called.
A vector of increasing integers from 1 to nbve.
optimsimplex.computefv and optimsimplex.compsomefv return a
list with the following elements:
The updated simplex object.
The updated user-defined data.