분산분석(ANOVA Test)¶

분산분석(Analysis of Variance, ANOVA)을 수행합니다.

Syntax

Anova (SimpleFeatureCollection inputFeatures, String fields) : AnovaResult

Input Parameters

Identifier	Description	Type	Default	Required
inputFeatures	분석 변수를 포함하고 있는 레이어입니다.	SimpleFeatureCollection		✓
fields	쉼표로 분리된 분석에 필요한 숫자값을 가진 필드 목록입니다.	String		✓

Process Outputs

Identifier	Description	Type	Default	Required
result	분산분석 결과입니다.	AnovaResult		✓

Constraints

Output은 XML로 반환한다.

Examples

a1_2000, a2_2000, a3_2000, a4_2000 4개의 필드를 이용하여 분산분석을 수행한 결과는 다음의 XML 포맷으로 반환됩니다.

<?xml version="1.0" encoding="UTF-8"?>
<Anova>
  <Treatments>
    <Factor>Between Groups</Factor>
    <SumOfSquares>6.205958517716355E9</SumOfSquares>
    <DegreesOfFreedom>3.0</DegreesOfFreedom>
    <MeanSquare>2.068652839238785E9</MeanSquare>
    <FStatistics>303.3275165487872</FStatistics>
    <PValue>1.1102230246251565E-16</PValue>
  </Treatments>
  <Error>
    <Factor>Within Groups</Factor>
    <SumOfSquares>6.547070797481773E8</SumOfSquares>
    <DegreesOfFreedom>96.0</DegreesOfFreedom>
    <MeanSquare>6819865.414043513</MeanSquare>
  </Error>
  <Total>
    <Factor>Total</Factor>
    <SumOfSquares>6.860665597464533E9</SumOfSquares>
    <DegreesOfFreedom>99.0</DegreesOfFreedom>
  </Total>
  <Summary>
    <Group>
      <Group>a1_2000</Group>
      <Count>25</Count>
      <Minimum>7902.3838</Minimum>
      <Maximum>28062.184</Maximum>
      <Sum>455742.91310000006</Sum>
      <Average>18229.716524000003</Average>
      <Variance>2.727945084675026E7</Variance>
    </Group>
    <Group>
      <Group>a2_2000</Group>
      <Count>25</Count>
      <Minimum>96.724518</Minimum>
      <Maximum>105.01617</Maximum>
      <Sum>2515.9517890000006</Sum>
      <Average>100.63807156000003</Average>
      <Variance>4.840012157224312</Variance>
    </Group>
    <Group>
      <Group>a3_2000</Group>
      <Count>25</Count>
      <Minimum>5.2713499</Minimum>
      <Maximum>11.17146</Maximum>
      <Sum>218.94218979999997</Sum>
      <Average>8.757687591999998</Average>
      <Variance>2.508762737460472</Variance>
    </Group>
    <Group>
      <Group>a4_2000</Group>
      <Count>25</Count>
      <Minimum>0.22132</Minimum>
      <Maximum>9.58605</Maximum>
      <Sum>37.27112993</Sum>
      <Average>1.4908451972</Average>
      <Variance>3.4606488978589653</Variance>
    </Group>
  </Summary>
</Anova>