coef.opm: Summarize opm object

In optimx: Expanded Replacement and Extension of the 'optim' Function

Summarize opm object

Description

Summarize an "opm" object.

Usage

  ## S3 method for class 'opm'
coef(object, ...) 
  ## S3 replacement method for class 'opm'
coef(x) <- value 

Arguments

object	Object returned by opm.
...	Further arguments to be passed to the function. Currently not used.
x	An opm object.
value	Set parameters equal to this value.

Value

coef.opm returns the best parameters found by each method that returned such parameters. The returned coefficients are in the form of a matrix with the rows named by the relevant methods and the columns named according to parameter names provided by the user in the vector of starting values, or else by "p1", "p2", ..., if names are not provided.

Examples

ans <- opm(fn = function(x) sum(x*x), par = 1:2, method="ALL", control=list(trace=0))
print(coef(ans))

ansx <- optimx(fn = function(x) sum(x*x), par = 1:2, control=list(all.methods=TRUE, trace=0))
print(coef(ansx))


## Not run: 
proj <- function(x) x/sum(x)
f <- function(x) -prod(proj(x))
ans <- opm(1:2, f)
print(ans)
coef(ans) <- apply(coef(ans), 1, proj)
print(ans)

## End(Not run)

optimx documentation built on Oct. 24, 2023, 5:06 p.m.