copy and paste this google map to your website or blog!
Press copy button and paste into your blog or website.
(Please switch to 'HTML' mode when posting into your blog. Examples: WordPress Example, Blogger Example)
Input Form:Deal with this potential dealer,buyer,seller,supplier,manufacturer,exporter,importer
(Any information to deal,buy, sell, quote for products or service)
你了解世坤的 worldquant brain 平台吗？ - 知乎 Use ts_sum or ts_mean (ts operator) and rank to set proper condition Use if_else or form of?: to implement the Alpha idea sentiment数据应用，这部分是所谓的消息面影响，对于消息最简单的处理就是把它变成1个数字，从正向到负向，具体好不好用，取决于数据质量。