def get_curve_prime(self):
"""not in SPD documentation. same as k, but using the segment instead of the full data set"""
if len(self.x_Arai_segment) < 4:
self.pars['specimen_k_prime'], self.pars['specimen_k_prime_sse'] = 0, 0
return 0
data = lib_k.AraiCurvature(self.x_Arai_segment, self.y_Arai_segment)
self.pars['specimen_k_prime'] = data[0]
self.pars['specimen_k_prime_sse'] = data[3]
def get_curve(self):
x_Arai, y_Arai = self.x_Arai, self.y_Arai
data = lib_k.AraiCurvature(x_Arai,y_Arai)
self.pars['specimen_k'] = data[0]
self.pars['SSE'] = data[3]
return data[0], data[3]
