| java.lang.Object | ||
| ↳ | org.jfree.data.general.Series | |
| ↳ | org.jfree.data.xy.MatrixSeries | |
 Known Direct Subclasses
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Class Overview
Represents a dense matrix M[i,j] where each Mij item of the matrix has a value (default is 0).
Summary
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| data | Series matrix values | ||||||||||
| Public Constructors | |||||||||||
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Constructs a new matrix series.
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| Public Methods | |||||||||||
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Tests this object instance for equality with an arbitrary object.
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Returns the value of the specified item in this matrix series.
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Returns the number of columns in this matrix series.
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Return the matrix item at the specified index.
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Returns the column of the specified item.
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Returns the number of items in the series.
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Returns the row of the specified item.
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Returns the number of rows in this matrix series.
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Updates the value of the specified item in this matrix series.
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Sets all matrix values to zero and sends a
SeriesChangeEvent to all registered
listeners. | |||||||||||
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[Expand]
Inherited Methods | |||||||||||
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From class
org.jfree.data.general.Series
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From class
java.lang.Object
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Fields
protected double[][] data
Series matrix values
Public Constructors
public MatrixSeries (String name, int rows, int columns)
Constructs a new matrix series.
By default, all matrix items are initialzed to 0.
Parameters
| name | series name (null not permitted). |
|---|---|
| rows | the number of rows. |
| columns | the number of columns. |
Public Methods
public boolean equals (Object obj)
Tests this object instance for equality with an arbitrary object.
Parameters
| obj | the object (null permitted). |
|---|
Returns
- A boolean.
public double get (int i, int j)
Returns the value of the specified item in this matrix series.
Parameters
| i | the row of the item. |
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| j | the column of the item. |
Returns
- The value of the specified item in this matrix series.
See Also
public int getColumnsCount ()
Returns the number of columns in this matrix series.
Returns
- The number of columns in this matrix series.
public Number getItem (int itemIndex)
Return the matrix item at the specified index. Note that this method
creates a new Double instance every time it is called.
Parameters
| itemIndex | item index. |
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Returns
- The matrix item at the specified index.
See Also
public int getItemColumn (int itemIndex)
Returns the column of the specified item.
Parameters
| itemIndex | the index of the item. |
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Returns
- The column of the specified item.
public int getItemCount ()
Returns the number of items in the series.
Returns
- The item count.
public int getItemRow (int itemIndex)
Returns the row of the specified item.
Parameters
| itemIndex | the index of the item. |
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Returns
- The row of the specified item.
public int getRowCount ()
Returns the number of rows in this matrix series.
Returns
- The number of rows in this matrix series.
public void update (int i, int j, double mij)
Updates the value of the specified item in this matrix series.
Parameters
| i | the row of the item. |
|---|---|
| j | the column of the item. |
| mij | the new value for the item. |
See Also
public void zeroAll ()
Sets all matrix values to zero and sends a
SeriesChangeEvent to all registered
listeners.