public void FromInclusionProbabilitiesTest()
{
// Valid input
{
const int populationSize = 9;
var inclusionProbabilities = DoubleMatrix.Dense(populationSize, 1,
new double[populationSize] {
0.0602933142691422,
0.130083877944215,
0.211283730466511,
0.305874041451126,
0.415127817757125,
0.537249360967418,
0.661978741628504,
0.782520969486053,
0.895588146029904
});
int sampleSize = Convert.ToInt32(
Stat.Sum(inclusionProbabilities));
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
Assert.AreEqual(
expected: populationSize,
actual: randomSampling.PopulationSize);
Assert.AreEqual(
expected: sampleSize,
actual: randomSampling.SampleSize);
}
// inclusionProbabilities is null
{
DoubleMatrix inclusionProbabilities = null;
ArgumentExceptionAssert.Throw(
() =>
{
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
},
expectedType: typeof(ArgumentNullException),
expectedPartialMessage: ArgumentExceptionAssert.NullPartialMessage,
expectedParameterName: "inclusionProbabilities");
}
// Count of inclusionProbabilities <= 1
{
string STR_EXCEPT_PAR_MUST_BE_GREATER_THAN_VALUE =
string.Format(
ImplementationServices.GetResourceString(
"STR_EXCEPT_PAR_MUST_BE_GREATER_THAN_VALUE"),
"1");
const int populationSize = 1;
var inclusionProbabilities = DoubleMatrix.Dense(populationSize, 1,
new double[populationSize] {
0.895588146029904
});
ArgumentExceptionAssert.Throw(
() =>
{
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
},
expectedType: typeof(ArgumentException),
expectedPartialMessage: STR_EXCEPT_PAR_MUST_BE_GREATER_THAN_VALUE,
expectedParameterName: "inclusionProbabilities");
}
// At least an entry in inclusionProbabilities is not positive
{
string STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL =
string.Format(
ImplementationServices.GetResourceString(
"STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL"),
"0", "1");
const int populationSize = 9;
var inclusionProbabilities = DoubleMatrix.Dense(populationSize, 1,
new double[populationSize] {
0.0602933142691422,
0.130083877944215,
0.211283730466511,
0.305874041451126,
0.415127817757125,
0.537249360967418,
0.661978741628504,
0.0,
0.895588146029904
});
ArgumentExceptionAssert.Throw(
() =>
{
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
},
expectedType: typeof(ArgumentOutOfRangeException),
expectedPartialMessage: STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL,
expectedParameterName: "inclusionProbabilities");
}
// At least an entry in inclusionProbabilities is not less than 1
{
string STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL =
string.Format(
ImplementationServices.GetResourceString(
"STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL"),
"0", "1");
const int populationSize = 9;
var inclusionProbabilities = DoubleMatrix.Dense(populationSize, 1,
new double[populationSize] {
0.0602933142691422,
0.130083877944215,
0.211283730466511,
0.305874041451126,
0.415127817757125,
0.537249360967418,
0.661978741628504,
1.0,
0.895588146029904
});
ArgumentExceptionAssert.Throw(
() =>
{
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
},
expectedType: typeof(ArgumentOutOfRangeException),
expectedPartialMessage: STR_EXCEPT_PAR_ENTRIES_NOT_IN_OPEN_INTERVAL,
expectedParameterName: "inclusionProbabilities");
}
// Entries in inclusionProbabilities does not sum up to an integer
{
string STR_EXCEPT_PAR_ENTRIES_MUST_SUM_TO_INTEGER =
ImplementationServices.GetResourceString(
"STR_EXCEPT_PAR_ENTRIES_MUST_SUM_TO_INTEGER");
const int populationSize = 9;
var inclusionProbabilities = DoubleMatrix.Dense(populationSize, 1,
new double[populationSize] {
0.0602933142691422,
0.130083877944215,
0.211283730466511 + .5,
0.305874041451126,
0.415127817757125,
0.537249360967418,
0.661978741628504,
0.782520969486053,
0.895588146029904
});
ArgumentExceptionAssert.Throw(
() =>
{
var randomSampling = UnequalProbabilityRandomSampling.
FromInclusionProbabilities(
inclusionProbabilities: inclusionProbabilities);
},
expectedType: typeof(ArgumentException),
expectedPartialMessage: STR_EXCEPT_PAR_ENTRIES_MUST_SUM_TO_INTEGER,
expectedParameterName: "inclusionProbabilities");
}
}
