Examples of org.apache.mahout.math.list.IntArrayList.beforeInsert()

Class org.apache.mahout.math.list.IntArrayList

Examples of org.apache.mahout.math.list.IntArrayList.beforeInsert()

org.apache.mahout.math.list.IntArrayList.beforeInsert()
Inserts the specified element before the specified position into the receiver. Shifts the element currently at that position (if any) and any subsequent elements to the right. @param index index before which the specified element is to be inserted (must be in [0,size]). @param element element to be inserted. @throws IndexOutOfBoundsException index is out of range (index < 0 || index > size()).

        LU.setQuick(i, j, after);   // this is the original
        if (sparse) {
          if (before == 0 && after != 0) { // nasty bug fixed!
            int pos = nonZeroIndexes.binarySearch(i);
            pos = -pos - 1;
            nonZeroIndexes.beforeInsert(pos, i);
          }
          if (before != 0 && after == 0) {
            nonZeroIndexes.remove(nonZeroIndexes.binarySearch(i));
          }
        }

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        lu.setQuick(i, j, after);   // this is the original
        if (sparse) {
          if (before == 0 && after != 0) { // nasty bug fixed!
            int pos = nonZeroIndexes.binarySearch(i);
            pos = -pos - 1;
            nonZeroIndexes.beforeInsert(pos, i);
          }
          if (before != 0 && after == 0) {
            nonZeroIndexes.remove(nonZeroIndexes.binarySearch(i));
          }
        }

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