RATS是计量经济功夫序列软件，拥有复杂的内置统计职能（例如，用于状态空间建模、GARCH估计、ARIMA模型和向量自回归）、菜单驱动操作和编程职能，这些职能能够援手您和正确地实现工作。新版本10.0现已推出。

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RATS 10.0版本重要更改的法式如下：

● CALENDAR此刻允许不定期的输入日期来处置假日期间跳过条款标逐日数据，同时维持对输入和输出使用日期的能力。数据指令有JULIAN选项，它从文件的日期列中提取该信息，而几个新函数将从方式编码的信息（例如文件中单独的year、month和day字段）中推算所需的信息。是，图形此刻能够在日期不规定的图形上显示日期。

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● 数据（体式）向导此刻处置名称覆盖，若是文件上的名称不被rat（例如，带有空格的名称字段）允许，或者名称很长或寓意吞吐。Box-Jenkins（ARIMA)、ARCH/GARCH（单变量）和ARCH/GARCH（多变量）向导都被转换为使用选项卡来削减混乱。

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● GARCH允许对多变量模型（而不仅仅是单变量）进行的DISTRIB=GED，并增长DCC和QBAR选项来节造DCC模型的二级递归。

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● 谬误、脉冲和汗青，这些都必要线性模型来进行推算，若是这些模型是线性的（通常用于更写成FRML的恒等式），那么它们将接受带有FRML的模型。

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● 汗青有了新的基础和成效选项，这是一种更使用的步骤，以获得分化的汗青。

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RATS Version 10.0

We're pleased to announce that version 10 of RATS is now available.With a new major version number,we do a revision of the documentation to incorporate the changes made since version 9,and to improve the presentation of the information to answer commonly asked questions.The new versions have substantially more clickable links,both within the manuals themselves,and also to the help on the web site,which now includes detailed descriptions of the most of the procedures. The main changes to the program with 10.0 vs 9.2 are shown below.(Changes that came in earlier are listed further down on the page). A list with all combined changes after 9.0 thyough 10.0 is provided in the help.

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● CALENDAR now allows for irregular input dates to handle daily data with skipped entries for holidays while maintaining the ability to use dates on input and output.The DATA instruction has a JULIAN option which pulls that information from a date column on the file, while several new functions will compute the required information from information coded in other ways(such as separate year, moth and day fields on the file). In particular, GRAPH can now show dates on graphs with irregular dated data.

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● The Date(Other Formats) Wizard now includes handling for name overrides if the name on the file isn't permitted by RATS(for instance, name fields with blanks) or is long or cryptic. The Box-Jenkins(ARIMA), ARCH/GARCH（Univariate) and ARCH/GARCH（Multivariate) Wizards have all been converted to use tabs to reduce clutter.

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● GARCH allows DISTRIB=GED on multivariate models(not just univariate) and adds the DCC and QBAR options to control the secondary recursion for the DCC model.

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● ERRORS, IMPULSE and HISTORY, which require fully linear models for their calculations, will now accept models with simple FRML's if those are in a\linear form (typically for identities wnich are easier to write as FRML's).

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● HISTORY has new BASE and EFFECTS options which are an easier-to-use way to obtain the breakdown of the historical decomposition.

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