| Package | Description | 
|---|---|
| org.hipparchus.stat.descriptive | 
 Generic univariate and multivariate summary statistic objects. 
 | 
| org.hipparchus.stat.fitting | 
 Statistical methods for fitting distributions. 
 | 
| org.hipparchus.stat.inference | 
 Classes providing hypothesis testing. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
DescriptiveStatistics
Maintains a dataset of values of a single variable and computes descriptive
 statistics based on stored data. 
 | 
class  | 
StatisticalSummaryValues
Value object representing the results of a univariate
 statistical summary. 
 | 
class  | 
StreamingStatistics
Computes summary statistics for a stream of data values added using the
  
addValue method. | 
| Modifier and Type | Method and Description | 
|---|---|
static StatisticalSummary | 
StatisticalSummary.aggregate(Iterable<? extends StatisticalSummary> statistics)
Computes aggregated statistical summaries. 
 | 
static StatisticalSummary | 
StatisticalSummary.aggregate(StatisticalSummary... statistics)
Computes aggregated statistical summaries. 
 | 
StatisticalSummary | 
StreamingStatistics.getSummary()
Return a  
StatisticalSummaryValues instance reporting current
 statistics. | 
| Modifier and Type | Method and Description | 
|---|---|
static StatisticalSummary | 
StatisticalSummary.aggregate(StatisticalSummary... statistics)
Computes aggregated statistical summaries. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static StatisticalSummary | 
StatisticalSummary.aggregate(Iterable<? extends StatisticalSummary> statistics)
Computes aggregated statistical summaries. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
StatisticalSummary | 
EmpiricalDistribution.getSampleStats()
Returns a  
StatisticalSummary describing this distribution. | 
| Modifier and Type | Method and Description | 
|---|---|
double | 
TTest.homoscedasticT(StatisticalSummary sampleStats1,
              StatisticalSummary sampleStats2)
Computes a 2-sample t statistic, comparing the means of the datasets
 described by two  
StatisticalSummary instances, under the
 assumption of equal subpopulation variances. | 
static double | 
InferenceTestUtils.homoscedasticT(StatisticalSummary sampleStats1,
              StatisticalSummary sampleStats2)  | 
double | 
TTest.homoscedasticTTest(StatisticalSummary sampleStats1,
                  StatisticalSummary sampleStats2)
Returns the observed significance level, or
 p-value, associated with a two-sample, two-tailed t-test
 comparing the means of the datasets described by two StatisticalSummary
 instances, under the hypothesis of equal subpopulation variances. 
 | 
static double | 
InferenceTestUtils.homoscedasticTTest(StatisticalSummary sampleStats1,
                  StatisticalSummary sampleStats2)  | 
double | 
TTest.t(double mu,
 StatisticalSummary sampleStats)
 | 
static double | 
InferenceTestUtils.t(double mu,
 StatisticalSummary sampleStats)  | 
double | 
TTest.t(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)
Computes a 2-sample t statistic , comparing the means of the datasets
 described by two  
StatisticalSummary instances, without the
 assumption of equal subpopulation variances. | 
static double | 
InferenceTestUtils.t(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)  | 
double | 
TTest.tTest(double mu,
     StatisticalSummary sampleStats)
Returns the observed significance level, or
 p-value, associated with a one-sample, two-tailed t-test
 comparing the mean of the dataset described by  
sampleStats
 with the constant mu. | 
static double | 
InferenceTestUtils.tTest(double mu,
     StatisticalSummary sampleStats)  | 
boolean | 
TTest.tTest(double mu,
     StatisticalSummary sampleStats,
     double alpha)
Performs a 
 two-sided t-test evaluating the null hypothesis that the mean of the
 population from which the dataset described by  
stats is
 drawn equals mu. | 
static boolean | 
InferenceTestUtils.tTest(double mu,
     StatisticalSummary sampleStats,
     double alpha)  | 
double | 
TTest.tTest(StatisticalSummary sampleStats1,
     StatisticalSummary sampleStats2)
Returns the observed significance level, or
 p-value, associated with a two-sample, two-tailed t-test
 comparing the means of the datasets described by two StatisticalSummary
 instances. 
 | 
static double | 
InferenceTestUtils.tTest(StatisticalSummary sampleStats1,
     StatisticalSummary sampleStats2)  | 
boolean | 
TTest.tTest(StatisticalSummary sampleStats1,
     StatisticalSummary sampleStats2,
     double alpha)
Performs a
 
 two-sided t-test evaluating the null hypothesis that
  
sampleStats1 and sampleStats2 describe
 datasets drawn from populations with the same mean, with significance
 level alpha. | 
static boolean | 
InferenceTestUtils.tTest(StatisticalSummary sampleStats1,
     StatisticalSummary sampleStats2,
     double alpha)  | 
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