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java.lang.Objectorg.statcato.statistics.inferential.CrossTabulation
public class CrossTabulation
Cross tabulation and Chi-square test.
ContingencyTable
Constructor Summary | |
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CrossTabulation(int a,
int b)
Constructor, given the number of rows and columns. |
Method Summary | |
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void |
addObservation(int i,
int j,
double frequency)
Adds the given frequency to the location at row i and column j. |
void |
computeChiSquare()
Creates a contingency table object using the cross tabulation data. |
double |
getColumnSum(int j)
Return the sum of the given column. |
double |
getColumnSumPercent(int i)
Return the percent of the sum of the given column out of the total sum. |
ContingencyTable |
getContingencyTable()
Returns the contingency table. |
double |
getFrequency(int i,
int j)
Returns the frequency at row i and column j. |
double |
getPercent(int i,
int j)
Returns the percent at row i and column j. |
double |
getRowSum(int i)
Return the sum of the given row. |
double |
getRowSumPercent(int i)
Return the percent of the sum of the given row out of the total sum. |
double |
getTotalSum()
Return the total sum. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CrossTabulation(int a, int b)
a
- number of rowsb
- number of columnsMethod Detail |
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public void addObservation(int i, int j, double frequency)
i
- row indexj
- column indexdata
- double arraypublic double getFrequency(int i, int j)
i
- row indexj
- column index
public double getPercent(int i, int j)
i
- j
-
public double getRowSum(int i)
i
- row index
public double getRowSumPercent(int i)
i
- row index
public double getColumnSum(int j)
j
- column index
public double getColumnSumPercent(int i)
i
- column index
public double getTotalSum()
public void computeChiSquare()
public ContingencyTable getContingencyTable()
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