def acorrelation(X):
    C = acovariance(X)
    V = N.diagonal(C)
    return C / N.sqrt(N.multiply.outer(V,V))
Returns the value of the minimum X coordinate.
dataset/ETHPy150Open radlab/sparrow/src/main/python/third_party/stats.py/acorrelation--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/gis/gdal/envelope.py/Envelope.min_x