public double[] columnRanges(){
            double[] ranges = new double[this.numberOfRows];
            for(int i=0; i<this.numberOfColumns; i++){
                double[] hold = new double[this.numberOfRows];
                for(int j=0; j<this.numberOfRows; j++){
                    hold[i] = this.matrix[j][i];
                }
                Stat st = new Stat(hold);
                ranges[i] = st.maximum() - st.minimum();
            }

            return ranges;
        }