是随机过程中时间序列分析作业，基于Matlab编程实现模型判别，参数求取，模型预测等，另附有本人作业全文，供大家参考。-random process is time-series analysis of operations, based on the Matlab programming model checker, parameters strike, model projections, followed by my work, for your reference.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001329s ]
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:0.100353s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001177s ]
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