乱七八糟的笔记

SELECT PERCENTILE(orders, 0.5) OVER (PARTITION BY deal_id, type) as per50, PERCENTILE(orders, 0.25) OVER (PARTITION BY deal_id, type) as per25, PERCENTILE(orders, 0.75) OVER (PARTITION BY deal_id, type) as per75,* from temp为了获得orders这个字段在每个deal_id,.

本次代码的作者是：(C) Laurens van der Maaten, Delft University of Technologythanks,it is very helpful. I am trying to interprete thiscode.matlab toolbox代码加注释：function [M, L, Y, C] = lmnn(X, labels)...