Package minimise :: Module steepest_descent :: Class steepest_descent
[hide private]
[frames] | no frames]

Class steepest_descent

source code


Instance Methods [hide private]
 
__init__(self, func, dfunc=None, args=(), x0=None, line_search_algor=None, func_tol=1e-05, maxiter=1000, full_output=0, print_flag=0, a0=1.0, mu=0.0001, eta=0.1)
Class for steepest descent minimisation specific functions.
source code
 
backup_current_data(self)
Function to backup the current data dfk into dfk_last.
source code
 
dir(self)
Return the steepest descent direction.
source code
 
get_a0(self)
Update a0 using information about the last iteration.
source code
 
update_data(self)
Function to update the function value, gradient vector, and hessian matrix
source code

Inherited from generic_line_search.generic_line_search: new_param_func

Inherited from generic_minimise.generic_minimise: generic_minimise, tests

Method Details [hide private]

__init__(self, func, dfunc=None, args=(), x0=None, line_search_algor=None, func_tol=1e-05, maxiter=1000, full_output=0, print_flag=0, a0=1.0, mu=0.0001, eta=0.1)
(Constructor)

source code 

Class for steepest descent minimisation specific functions.

Overrides: generic_minimise.generic_minimise.__init__