Description Usage Arguments Details Author(s) See Also
View source: R/powell.control.R
Controls convergence in powell
.
1 2 | powell.control(trace = 0, rhobeg = log(100)/10, rhoend = 1e-04,
maxit = 1e+05, fnscale = 1, parscale = 1, ...)
|
trace |
an integer that determines the level of information
produced at each step of the optimizer. The value of |
rhobeg |
About one tenth of the greatest expected change to a variable. |
rhoend |
Indicates the accuracy that is required in the final values of the variables. |
maxit |
The upper bound on the number of times |
fnscale |
A scalar to divide the function value
by. |
parscale |
A vector to divide the parameter values by. If only
one value is given it is replicated to the length of |
... |
Additional arguments that will be ignored! |
rhobeg
and rhoend
must be set to the initial and
final values of a trust region radius, so both must be positive with
rhoend<=rhobeg
.
Sundar Dorai-Raj
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