Changes

end

end

if index > 1 then

if index > 1 then

for _, column in ipairs(self._stat_columns) do

for _, column in ipairs(self._comparison_columns) do

for i=index-1,1,-1 do

for i=index-1,1,-1 do

local previous_row = data_rows[i]

local previous_row = data_rows[i]