def init_sum_scheme(sum_scheme)
        row_scheme, col_scheme = sum_scheme.split(',') unless sum_scheme.nil?

        unless row_scheme.nil?
          @sum_row_title, @sum_row = row_scheme.split(':') unless row_scheme.empty?
        end
        
        @sum_row.nil? ? @sum_row = 0 : @sum_row = @sum_row.to_i
        @sum_row_title = 'Total' if @sum_row_title.nil? 

        col_scheme.nil? ? @sum_col_title = 'Total' : @sum_col_title = col_scheme
        @sum_col = 0
      end
def init_sum_scheme(sum_scheme)
        row_scheme, col_scheme = sum_scheme.split(',') unless sum_scheme.nil?

        unless row_scheme.nil?
          @sum_row_title, @sum_row = row_scheme.split(':') unless row_scheme.empty?
        end
        
        @sum_row.nil? ? @sum_row = 0 : @sum_row = @sum_row.to_i
        @sum_row_title = 'Total' if @sum_row_title.nil? 

        col_scheme.nil? ? @sum_col_title = 'Total' : @sum_col_title = col_scheme
        @sum_col = 0
      end
def init_sum_scheme ( sum_scheme ) row_scheme , col_scheme = sum_scheme . split ( ',' ) unless sum_scheme . nil? unless row_scheme . nil? @sum_row_title , @sum_row = row_scheme . split ( ':' ) unless row_scheme . empty? end @sum_row . nil? ? @sum_row = 0 : @sum_row = @sum_row . to_i @sum_row_title = 'Total' if @sum_row_title . nil? col_scheme . nil? ? @sum_col_title = 'Total' : @sum_col_title = col_scheme @sum_col = 0 end
Initializes the sum row title an positions as well as the sum column
 title and position
Initializes the sum row title an positions as well as the sum column title and position