Lines Matching refs:radius
234 # deviations - a confidence interval radius,
379 self.radius = find_t_dist_value(alpha, self.count - 1) * self.error
381 def alpha_for_radius(self, radius):
382 return find_t_dist_alpha(divide(radius, self.error), self.count)
384 def degree_for_radius(self, radius):
385 return find_t_dist_degree(self.alpha, divide(radius, self.deviation))
391 text += " confidence in " + text_number(self.mean - self.radius)
392 text += " to " + text_number(self.mean + self.radius) + ")"
417 radius = self.upper.mean - self.lower.mean
418 rising = self.lower.alpha_for_radius(radius)
419 falling = self.upper.alpha_for_radius(radius)
421 rising = self.lower.degree_for_radius(radius)
422 falling = self.upper.degree_for_radius(radius)