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This commit is contained in:
Fabian Joswig 2021-10-11 09:40:20 +01:00
parent 4d746802d2
commit 2b30623235
1 changed files with 15 additions and 35 deletions
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pyerrors/correlators.py
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@ -58,9 +58,9 @@ class Corr:
self.T = len(self.content) #for convenience: will be used a lot self.T = len(self.content) #for convenience: will be used a lot
#The attribute "range" [start,end] marks a range of two timeslices. #The attribute "range" [start,end] marks a range of two timeslices.
#This is useful for keeping track of plateaus and fitranges. #This is useful for keeping track of plateaus and fitranges.
#The range can be inherited from other Corrs, if the operation should not alter a chosen range eg. multiplication with a constant. #The range can be inherited from other Corrs, if the operation should not alter a chosen range eg. multiplication with a constant.
if not prange is None: if not prange is None:
self.prange=prange self.prange=prange
@ -143,8 +143,8 @@ class Corr:
newcontent.append(0.5 * (self.content[t] + self.content[self.T - t])) newcontent.append(0.5 * (self.content[t] + self.content[self.T - t]))
if(all([x is None for x in newcontent])): if(all([x is None for x in newcontent])):
raise Exception("Corr could not be symmetrized: No redundant values") raise Exception("Corr could not be symmetrized: No redundant values")
return Corr(newcontent,prange= self.prange if hasattr(self,"prange") else None) return Corr(newcontent, prange=self.prange if hasattr(self,"prange") else None)
def anti_symmetric(self): def anti_symmetric(self):
@ -192,12 +192,12 @@ class Corr:
G0=G.content[t0] G0=G.content[t0]
L = mat_mat_op(anp.linalg.cholesky, G0) L = mat_mat_op(anp.linalg.cholesky, G0)
Li = mat_mat_op(anp.linalg.inv, L) Li = mat_mat_op(anp.linalg.inv, L)
LT=L.T LT=L.T
LTi=mat_mat_op(anp.linalg.inv, LT) LTi=mat_mat_op(anp.linalg.inv, LT)
newcontent=[] newcontent=[]
for t in range(self.T): for t in range(self.T):
Gt=G.content[t] Gt=G.content[t]
M=Li@Gt@LTi M=Li@Gt@LTi
eigenvalues = eigh(M)[0] eigenvalues = eigh(M)[0]
#print(eigenvalues) #print(eigenvalues)
eigenvalue=eigenvalues[-state] eigenvalue=eigenvalues[-state]
@ -205,14 +205,6 @@ class Corr:
return Corr(newcontent) return Corr(newcontent)
def roll(self, dt): def roll(self, dt):
return Corr(list(np.roll(np.array(self.content, dtype=object), dt))) return Corr(list(np.roll(np.array(self.content, dtype=object), dt)))
@ -307,7 +299,7 @@ class Corr:
raise Exception("Correlator must be projected before fitting") raise Exception("Correlator must be projected before fitting")
#The default behaviour is: #The default behaviour is:
#1 use explicit fitrange #1 use explicit fitrange
# if none is provided, use the range of the corr # if none is provided, use the range of the corr
# if this is also not set, use the whole length of the corr (This could come with a warning!) # if this is also not set, use the whole length of the corr (This could come with a warning!)
@ -316,7 +308,7 @@ class Corr:
if hasattr(self,"prange"): if hasattr(self,"prange"):
fitrange=self.prange fitrange=self.prange
else: else:
fitrange=[0, self.T] fitrange=[0, self.T]
xs = [x for x in range(fitrange[0], fitrange[1]) if not self.content[x] is None] xs = [x for x in range(fitrange[0], fitrange[1]) if not self.content[x] is None]
ys = [self.content[x][0] for x in range(fitrange[0], fitrange[1]) if not self.content[x] is None] ys = [self.content[x][0] for x in range(fitrange[0], fitrange[1]) if not self.content[x] is None]
@ -333,8 +325,8 @@ class Corr:
def plateau(self, plateau_range=None, method="fit"): def plateau(self, plateau_range=None, method="fit"):
if not plateau_range: if not plateau_range:
if hasattr(self,"prange"): if hasattr(self,"prange"):
plateau_range=self.prange plateau_range=self.prange
else: else:
raise Exception("no plateau range provided") raise Exception("no plateau range provided")
if self.N != 1: if self.N != 1:
raise Exception("Correlator must be projected before getting a plateau.") raise Exception("Correlator must be projected before getting a plateau.")
@ -350,11 +342,11 @@ class Corr:
return returnvalue return returnvalue
else: else:
raise Exception("Unsupported plateau method: " + method) raise Exception("Unsupported plateau method: " + method)
def set_prange(self,prange): def set_prange(self,prange):
if not len(prange)==2: if not len(prange)==2:
raise Exception("range must be a list or array with two values") raise Exception("range must be a list or array with two values")
if not ((isinstance(prange[0],int)) and (isinstance(prange[1],int))): if not ((isinstance(prange[0],int)) and (isinstance(prange[1],int))):
@ -362,18 +354,10 @@ class Corr:
if not (0<=prange[0]<=self.T and 0<=prange[1]<=self.T and prange[0]<prange[1] ): if not (0<=prange[0]<=self.T and 0<=prange[1]<=self.T and prange[0]<prange[1] ):
raise Exception("start and end point must define a range in the interval 0,T") raise Exception("start and end point must define a range in the interval 0,T")
self.prange=prange self.prange=prange
return return
# Plotting routine for correlator
#quick and dirty plotting function to view Correlator inside Jupyter
#If one would not want to import pyplot, this could easily be replaced by a call to pe.plot_corrs
#This might be a bit more flexible later
def show(self, x_range=None, comp=None, logscale=False, plateau=None, fit_res=None, save=None, ylabel=None): def show(self, x_range=None, comp=None, logscale=False, plateau=None, fit_res=None, save=None, ylabel=None):
"""Plots the correlator, uses tag as label if available. """Plots the correlator, uses tag as label if available.
@ -453,10 +437,6 @@ class Corr:
def print(self, range=[0, None]): def print(self, range=[0, None]):
print(self.__repr__(range)) print(self.__repr__(range))
def __repr__(self, range=[0, None]): def __repr__(self, range=[0, None]):
if range[1]: if range[1]:
range[1] += 1 range[1] += 1