One way we can compress data is to use a frequency table or a frequency distribution. 壓縮資料的一種有效方法是編製頻率表或頻率分佈。
The compression storage of the frequency table and the affixation information is of great significance for the whole realization of constant grade compression technology. 頻率表及附加信息的壓縮存儲對整個常數級壓縮技術的實現具有重要意義。