#! /usr/bin/env python

from __future__ import print_function
from openturns import *

TESTPREAMBLE()
RandomGenerator.SetSeed(0)

dimension = 5
indices = [2, 0, 1]
fullDistribution = ComposedDistribution([Normal(), Uniform(), Exponential(
), Weibull()], ComposedCopula([GumbelCopula(), ClaytonCopula()]))
distribution = MarginalDistribution(fullDistribution, indices)

print('Distribution ', repr(distribution))
print('Distribution ', distribution)

# Is this distribution elliptical ?
print('Elliptical = ', distribution.isElliptical())

# Is this distribution continuous ?
print('Continuous = ', distribution.isContinuous())

# Test for realization of distribution
oneRealization = distribution.getRealization()
print('oneRealization=', oneRealization)

# Test for sampling
size = 10000
oneSample = distribution.getSample(size)
print('oneSample first=', oneSample[0], ' last=', oneSample[size - 1])
print('mean=', oneSample.computeMean())
print('covariance=', oneSample.computeCovariance())
if (distribution.getDimension() == 1):
    size = 100
    for i in range(2):
        print('Kolmogorov test for the generator, sample size=', size, ' is ', FittingTest.Kolmogorov(
            distribution.getSample(size), distribution).getBinaryQualityMeasure())
        size *= 10

# Define a point
point = [1.0] * distribution.getDimension()
print('Point= ', point)

# Show PDF and CDF of point
DDF = distribution.computeDDF(point)
print('ddf     =', DDF)
LPDF = distribution.computeLogPDF(point)
print('log pdf=', LPDF)
PDF = distribution.computePDF(point)
print('pdf     =', PDF)
CDF = distribution.computeCDF(point)
print('cdf=', CDF)
CCDF = distribution.computeComplementaryCDF(point)
print('ccdf=', CCDF)
Survival = distribution.computeSurvivalFunction(point)
print('survival=', Survival)
quantile = distribution.computeQuantile(0.95)
print('quantile=', quantile)
print('cdf(quantile)=', distribution.computeCDF(quantile))
quantileTail = distribution.computeQuantile(0.95, True)
print('quantile (tail)=', quantileTail)
CDFTail = distribution.computeComplementaryCDF(quantileTail)
print('cdf (tail)=', CDFTail)
# Get 95% survival function
inverseSurvival = Point(distribution.computeInverseSurvivalFunction(0.95))
print("InverseSurvival=", repr(inverseSurvival))
print("Survival(inverseSurvival)=%.6f" %
      distribution.computeSurvivalFunction(inverseSurvival))
print("entropy=%.6f" % distribution.computeEntropy())
# Confidence regions
threshold = Point()
print("Minimum volume interval=",
      distribution.computeMinimumVolumeInterval(0.95, threshold))
print("threshold=", threshold)
beta = Point()
levelSet = distribution.computeMinimumVolumeLevelSet(0.95, beta)
print("Minimum volume level set=", levelSet)
print("beta=", beta)
print("Bilateral confidence interval=",
      distribution.computeBilateralConfidenceInterval(0.95, beta))
print("beta=", beta)
print("Unilateral confidence interval (lower tail)=",
      distribution.computeUnilateralConfidenceInterval(0.95, False, beta))
print("beta=", beta)
print("Unilateral confidence interval (upper tail)=",
      distribution.computeUnilateralConfidenceInterval(0.95, True, beta))
print("beta=", beta)

mean = distribution.getMean()
print('mean=', mean)
standardDeviation = distribution.getStandardDeviation()
print('standard deviation=', standardDeviation)
skewness = distribution.getSkewness()
print('skewness=', skewness)
kurtosis = distribution.getKurtosis()
print('kurtosis=', kurtosis)
covariance = distribution.getCovariance()
print('covariance=', covariance)
correlation = distribution.getCorrelation()
print('correlation=', correlation)
spearman = distribution.getSpearmanCorrelation()
print('spearman=', spearman)
kendall = distribution.getKendallTau()
print('kendall=', kendall)
for i in range(6):
    print('standard moment n=', i, ', value=',
          distribution.getStandardMoment(i))
print('Standard representative=', distribution.getStandardRepresentative())
