这个 m 文件查找 Hodrick-普雷斯科特过滤任何的系列时髦的时间系列 ；在计量经济学中广泛称为 H P
并可用于分析的发展趋势和波动性的系列。
此版本使用稀疏矩阵，这种方法提高了速度和性能，并允许使用几个同时时间序列。"Makeplot" 选项绘制每次
系列推出针对其筛选对口和输出 desvabs 给出了波动性"措施"。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001195s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.091193s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001271s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002067s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002325s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004573s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001034s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004215s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023963s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001706s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 29712 [ RunTime:0.022571s ]
