Examples of cern.colt.matrix.DoubleMatrix1D.viewPart()

cern.colt.matrix.DoubleMatrix1D.viewPart()

Constructs and returns a new sub-range view that is a width sub matrix starting at index. Operations on the returned view can only be applied to the restricted range. Any attempt to access coordinates not contained in the view will throw an IndexOutOfBoundsException.

Note that the view is really just a range restriction: The returned matrix is backed by this matrix, so changes in the returned matrix are reflected in this matrix, and vice-versa.

The view contains the cells from index..index+width-1. and has view.size() == width. A view's legal coordinates are again zero based, as usual. In other words, legal coordinates of the view are 0 .. view.size()-1==width-1. As usual, any attempt to access a cell at other coordinates will throw an IndexOutOfBoundsException. @param index The index of the first cell. @param width The width of the range. @throws IndexOutOfBoundsException if index<0 || width<0 || index+width>size(). @return the new view.

DoubleMatrix1D view1 = master.viewRow(0).viewSelection(indexes);
System.out.println("view1="+view1);
DoubleMatrix1D view2 = view1.viewPart(0,3);
System.out.println("view2="+view2);


view2.viewPart(0,2).assign(-1);
System.out.println("master replaced"+master);
System.out.println("flip1 replaced"+view1);
System.out.println("flip2 replaced"+view2);

DoubleMatrix1D view1 = master.viewRow(0).viewSelection(indexes);
System.out.println("view1="+view1);
DoubleMatrix1D view2 = view1.viewPart(0,3);
System.out.println("view2="+view2);


view2.viewPart(0,2).assign(-1);
System.out.println("master replaced"+master);
System.out.println("flip1 replaced"+view1);
System.out.println("flip2 replaced"+view2);

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