def __init__(self,
name,
xvar,
convex=True,
a=0.0,
b=1.0,
power=1,
pars=None):
## initialize the base class
FUNC.__init__(self, name, xvar=xvar)
ShiftScalePoly.__init__(self, a=a, b=b, power=power, pars=pars)
self.__convex = True if convex else False
xmin, xmax = self.xminmax()
## create the function
self.fun = Ostap.MoreRooFit.ConvexOnly(
self.roo_name('copol_'),
'%s Bernstein %s' % ("convex" if convex else "concave", self.name),
self.xvar, self.iconvex, xmin, xmax, self.a, self.b, self.pars_lst)
self.tricks = True
self.config = {
'name': self.name,
'xvar': self.xvar,
'pars': self.pars,
'a': self.a,
'b': self.b,
'convex': self.convex
}
def __init__(self,
name,
xvar,
increasing=True,
a=0.0,
b=1.0,
power=1,
pars=None):
## initialize the base class
FUNC.__init__(self, name, xvar=xvar)
ShiftScalePoly.__init__(self, a=a, b=b, power=power, pars=pars)
self.__increasing = True if increasing else False
xmin, xmax = self.xminmax()
## create the function
self.fun = Ostap.MoreRooFit.Monotonic(
self.roo_name('mpol_'), '%s Bernstein %s' %
("increasing" if increasing else "decreasing", self.name),
self.xvar, self.increasing, xmin, xmax, self.a, self.b,
self.pars_lst)
self.tricks = True
self.config = {
'name': self.name,
'xvar': self.xvar,
'pars': self.pars,
'a': self.a,
'b': self.b,
'increasing': self.increasing
}
def __init__(self, name, xvar, power=1, pars=None):
## initialize the base class
FUNC.__init__(self, name, xvar=xvar)
ParamsPoly.__init__(self, power=power, pars=pars)
xmin, xmax = self.xminmax()
## create the function
self.fun = Ostap.MoreRooFit.Bernstein(self.roo_name('bpol_'),
'Bernstein %s' % self.name,
self.xvar, xmin, xmax,
self.pars_lst)
self.tricks = True
self.config = {'name': self.name, 'xvar': self.xvar, 'pars': self.pars}
def __init__(
self,
name,
xvar,
func, ## c
a=0.0, ## a
b=1.0): ## b
FUNC.__init__(self, name, xvar=xvar)
assert isinstance ( func , ( ROOT.RooAbsReal, FUNC ) ) ,\
"Invalid type of ``func'' %s/%s" % ( func , type ( func ) )
self.__func0 = func
self.__c = func.fun if isnstance(func, FUNC) else func
self.__a = self.make_var(a, "a_%s" % self.name,
"shift/bias for %s" % self.name, False, a)
self.__b = self.make_var(b, "b_%s" % self.name,
"scale for %s" % self.name, False, b)
if not self.xvar in self.a.getParameters ( 0 ) and \
not self.xvar in self.b.getParameters ( 0 ) and \
not self.xvar in self.c.getParameters ( 0 ) :
self.warning("Function does not depend on xvar=%s" %
self.xvar.name)
self.__bc = Ostap.MoreRooFit.Product(self.b, self.c)
self.fun = Ostap.MoreRooFit.Addition(self.roo_name('ss_'),
"Scale&Shift %s" % self.name,
self.a, self.__bc)
self.config = {
'name': self.name,
'xvar': self.xvar,
'a': self.a,
'b': self.b,
'func': self.c
}
def __init__(
self,
a, ## a
xvar=None,
b=1.0, ## b
name='',
pattern='FAB_%s_%s'):
self.__a0 = a
self.__b0 = b
if instance(a, FUNC):
a = a.fun
if not xvar: xvar = a.xvar
if not name:
if hasattr(b, 'name'): name = pattern % (a.name, b.name)
else: name = pattern % (a.name, b)
FUNC.__init__(self, name, xvar=xvar)
if isinstance(b, FUNC): b = b.fun
self.__a = a
self.__b = self.make_var(b, "b_%s" % self.name, "B for %s" % self.name,
False, b)
if not self.xvar in self.a.getParameters ( 0 ) and \
not self.xvar in self.b.getParameters ( 0 ) and \
not self.xvar is self.a and \
not self.xvar is self.b :
self.warning("Function does not depend on xvar=%s" %
self.xvar.name)
self.config = {
'name': self.name,
'xvar': self.xvar,
'a': self.a,
'b': self.b
}
def __init__(self,
name,
xvar,
increasing=True,
convex=True,
a=0.0,
b=1.0,
power=1,
pars=None):
## initialize the base class
FUNC.__init__(self, name, xvar=xvar)
ShiftScalePoly.__init__(self, a=a, b=b, power=power, pars=pars)
self.__increasing = True if increasing else False
self.__convex = True if convex else False
xmin, xmax = self.xminmax()
## create the function
self.fun = Ostap.MoreRooFit.Convex('cpol_%s' % self.name,
'Bernstein(%s)' % self.name,
self.xvar, self.increasing,
self.iconvex, xmin, xmax, self.a,
self.b, self.pars_lst)
self.tricks = True
self.config = {
'name': self.name,
'xvar': self.xvar,
'pars': self.pars,
'a': self.a,
'b': self.b,
'convex': self.convex,
'increasing': self.increasing
}