def solve(self, monitors=None, mapper=None, **options):
_fill_defaults(options, self.settings)
from quasinewton import quasinewton, STATUS
self._update = MonitorRunner(problem=self.problem,
monitors=monitors)
result = quasinewton(fn=self.problem.nllf,
x0=self.problem.getp(),
monitor=self._monitor,
itnlimit=options['steps'],
)
code = result['status']
print "%d: %s" % (code, STATUS[code])
return result['x'], result['fx']
def fmin(f,x0,fprime):
try:
return quasinewton(fn=f,x0=x0,grad=fprime)['x']
except:
return x0
def fmin(f, x0, fprime):
try:
return quasinewton(fn=f, x0=x0, grad=fprime, itnlimit=100)['x']
except:
#raise
return x0
def fmin(f, x0, fprime):
try:
return quasinewton(fn=f, x0=x0, grad=fprime, itnlimit=100)["x"]
except:
# raise
return x0
def fmin(f,x0,fprime):
try:
return quasinewton(fn=f,x0=x0,grad=fprime)['x']
except:
return x0