Examples of cern.colt.matrix.DoubleMatrix2D.assign()

cern.colt.matrix.DoubleMatrix2D.assign()
Sets all cells to the state specified by values. values is required to have the form values[row][column] and have exactly the same number of rows and columns as the receiver.
The values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa. @param values the values to be filled into the cells. @return this (for convenience only). @throws IllegalArgumentException if values.length != rows() || for any 0 <= row < rows(): values[row].length != columns().

DoubleMatrix2D view1 = master.viewSelection(rowIndexes,columnIndexes);
System.out.println("view1="+view1);
DoubleMatrix2D view2 = view1.viewPart(0,0,2,2);
System.out.println("view2="+view2);


view2.assign(-1);
System.out.println("master replaced"+master);
System.out.println("flip1 replaced"+view1);
System.out.println("flip2 replaced"+view2);


}

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DoubleMatrix2D view1 = master.viewDice();
System.out.println("view1="+view1);
DoubleMatrix2D view2 = view1.viewDice();
System.out.println("view2="+view2);


view2.assign(-1);
System.out.println("master replaced"+master);
System.out.println("flip1 replaced"+view1);
System.out.println("flip2 replaced"+view2);


}

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DoubleMatrix2D view1 = master.viewRowFlip();
System.out.println("view1="+view1);
DoubleMatrix2D view2 = view1.viewRowFlip();
System.out.println("view2="+view2);


view2.assign(-1);
System.out.println("master replaced"+master);
System.out.println("flip1 replaced"+view1);
System.out.println("flip2 replaced"+view2);


}

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DoubleMatrix2D H = new DenseDoubleMatrix2D( vals ); // see values below...
System.out.println("\nHplus="+H.viewDice().zMult(H,null));


DoubleMatrix2D Hplus = Algebra.DEFAULT.inverse(H.viewDice().zMult( H,null )).zMult(H.viewDice(),null);
Hplus.assign(cern.jet.math.Functions.round(1.0E-10));
System.out.println("\nHplus="+Hplus);


    /*
DoubleMatrix2D HtH = new DenseDoubleMatrix2D( 5, 5 );
DoubleMatrix2D Hplus = new DenseDoubleMatrix2D( 5, 6 );

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public static void doubleTest() {
int rows = 4;
int columns = 5; // make a 4*5 matrix
DoubleMatrix2D master = new DenseDoubleMatrix2D(rows,columns);
System.out.println(master);
master.assign(1); // set all cells to 1
System.out.println("\n"+master);
master.viewPart(2,1,2,3).assign(2); // set [2,1] .. [3,3] to 2
System.out.println("\n"+master);


DoubleMatrix2D copyPart = master.viewPart(2,1,2,3).copy();

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System.out.println("\n"+master);
master.viewPart(2,1,2,3).assign(2); // set [2,1] .. [3,3] to 2
System.out.println("\n"+master);


DoubleMatrix2D copyPart = master.viewPart(2,1,2,3).copy();
copyPart.assign(3); // modify an independent copy
copyPart.set(0,0,4); 
System.out.println("\n"+copyPart); // has changed
System.out.println("\n"+master); // master has not changed


DoubleMatrix2D view1 = master.viewPart(0,3,4,2); // [0,3] .. [3,4]

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System.out.println("\nview1="+view1);
DoubleMatrix2D view2 = view1.viewPart(1,1,2,2);
System.out.println("\nview2="+view2);
DoubleMatrix2D view3 = view2.viewRowFlip();
System.out.println("\nview3="+view3);
view3.assign(Factory2D.ascending(view3.rows(),view3.columns()));
//Basic.ascending(view3);
System.out.println("\nview3="+view3);


//view2.assign(-1);
System.out.println("\nmaster replaced"+master);

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 */
public static void doubleTest11() {
int rows = 4;
int columns = 5; // make a 1*1 matrix
DoubleMatrix2D master = new DenseDoubleMatrix2D(1,1);
master.assign(2);
System.out.println("\n"+master);


int[] rowIndexes = new int[rows];
int[] columnIndexes = new int[columns];

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//System.out.println(a);
//System.out.println(b);
//System.out.println(Basic.product(a,b));
a.assign(0);
b.assign(0);


cern.colt.Timer timer = new cern.colt.Timer().start();
LinearAlgebra.mult(a,b);
timer.stop().display();
}

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//DoubleMatrix2D A = Factory2D.make(values);
DoubleMatrix2D A = Factory2D.ascending(3,4);
DoubleMatrix2D B = Factory2D.ascending(2,3);
DoubleMatrix2D C = Factory2D.ascending(1,2);
B.assign(F.plus(A.zSum()));
C.assign(F.plus(B.zSum()));




/*
System.out.println("\n"+A);
System.out.println("\n"+B);

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