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java.lang.Objectcern.colt.PersistentObject
cern.colt.matrix.AbstractMatrix
cern.colt.matrix.AbstractMatrix2D
cern.colt.matrix.tlong.LongMatrix2D
cern.colt.matrix.tlong.impl.WrapperLongMatrix2D
cern.colt.matrix.tlong.impl.DenseLargeLongMatrix2D
public class DenseLargeLongMatrix2D
Dense 2-d matrix holding long elements. First see the package summary and javadoc tree view to get the broad picture.
Implementation:
This data structure allows to store more than 2^31 elements. Internally holds one two-dimensional array, elements[rows][columns]. Note that this implementation is not synchronized.
Time complexity:
O(1) (i.e. constant time) for the basic operations get, getQuick, set, setQuick and size.
Constructor Summary | |
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DenseLargeLongMatrix2D(int rows,
int columns)
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Method Summary | |
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long[][] |
elements()
Returns the elements of this matrix. |
long |
getQuick(int row,
int column)
Returns the matrix cell value at coordinate [row,column]. |
LongMatrix2D |
like(int rows,
int columns)
Construct and returns a new empty matrix of the same dynamic type as the receiver, having the specified number of rows and columns. |
LongMatrix1D |
like1D(int size)
Construct and returns a new 1-d matrix of the corresponding dynamic type, entirelly independent of the receiver. |
void |
setQuick(int row,
int column,
long value)
Sets the matrix cell at coordinate [row,column] to the specified value. |
Methods inherited from class cern.colt.matrix.tlong.impl.WrapperLongMatrix2D |
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assign, assign, assign, equals, equals, vectorize, viewColumn, viewColumnFlip, viewDice, viewPart, viewRow, viewRowFlip, viewSelection, viewStrides |
Methods inherited from class cern.colt.matrix.tlong.LongMatrix2D |
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aggregate, aggregate, aggregate, aggregate, assign, assign, assign, assign, assign, assign, assign, cardinality, copy, forEachNonZero, get, getMaxLocation, getMinLocation, getNegativeValues, getNonZeros, getPositiveValues, like, set, toArray, toString, viewSelection, viewSelection, viewSorted, zMult, zMult, zMult, zMult, zSum |
Methods inherited from class cern.colt.matrix.AbstractMatrix2D |
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checkShape, checkShape, columns, columnStride, index, rows, rowStride, size, toStringShort |
Methods inherited from class cern.colt.matrix.AbstractMatrix |
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ensureCapacity, isView, trimToSize |
Methods inherited from class cern.colt.PersistentObject |
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clone |
Methods inherited from class java.lang.Object |
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getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public DenseLargeLongMatrix2D(int rows, int columns)
Method Detail |
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public long getQuick(int row, int column)
LongMatrix2D
Provided with invalid parameters this method may return invalid objects without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().
getQuick
in class WrapperLongMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.
public void setQuick(int row, int column, long value)
LongMatrix2D
Provided with invalid parameters this method may access illegal indexes without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().
setQuick
in class WrapperLongMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.value
- the value to be filled into the specified cell.public long[][] elements()
LongMatrix2D
elements
in class WrapperLongMatrix2D
public LongMatrix2D like(int rows, int columns)
LongMatrix2D
like
in class WrapperLongMatrix2D
rows
- the number of rows the matrix shall have.columns
- the number of columns the matrix shall have.
public LongMatrix1D like1D(int size)
LongMatrix2D
like1D
in class WrapperLongMatrix2D
size
- the number of cells the matrix shall have.
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