Reduce
============

.. js:function:: ArrayView.Reduce(f) 

ソース
^^^^^^

.. code-block:: js

        Reduce(f) {
            var v = new ArrayView(this.ncol);
    
            for (var c = 0; c < this.ncol; c++)  {
                var x;
                for (var r = 0; r < this.nrow; r++) {
                    var k = r * this.ncol + c;
                    if (r == 0) {
    
                        x = this.dt[k];
                    }
                    else {
    
                        x = f(x, this.dt[k]);
                    }
                }
                v.dt[c] = x;
            }
    
            return v;
        }