hive> create temporary macro sigmoid(x double) 1.0 / (1.0 + exp(-x));
hive> select sigmoid(2) from src limit 1;
OK
0.8807970779778823
Time taken: 11.881 seconds, Fetched: 1 row(s) hive> create temporary macro sigmoid(x double) 1.0 / (1.0 + exp(-x));
hive> select sigmoid(2) from src limit 1;
OK
0.8807970779778823
Time taken: 11.881 seconds, Fetched: 1 row(s) ![大数据技术应用于政务信息化智能搜索[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)