<p>希望打下帮我编个小程序，现在有HS-6位码的各种商品各个国家的单位出口价格（p）和出口量(q),在求出各种商品的世界平均价格（uv）后，把商品分成低、中、高三类，划分原则如下：</p><p>For each HS-6 product, we compute the world unit value average (noted UV). We then classify each flow:</p><p>– Flows with unit values verifying UV−25%, UV+25% belong to the medium range, along</p><p>with the last decile of [min,  UV−25%] and the first decile of [  UV + 25%, max].</p><p>– The first nine deciles of [min, UV−25%] are considered low range.</p><p>– The last nine deciles of [UV +25%, max] are considered high range.</p><p>谢谢大家的帮助。</p>