zacharydenton

from itertools import tee, izip

from django.contrib.gis.db import models
from django.contrib.gis.measure import Distance

from geopy.distance import distance as geopy_distance

def pairwise(iterable):
    "s -> (s0,s1), (s1,s2), (s2, s3), ..."
    a, b = tee(iterable)

paulgb

from scipy.stats import beta

def binom_interval(success, total, confint=0.95):
    quantile = (1 - confint) / 2.
    lower = beta.ppf(quantile, success, total - success + 1)
    upper = beta.ppf(1 - quantile, success + 1, total - success)
    return (lower, upper)