黃河泉 发表于 2017-6-7 16:50 
然后什么指令?错误讯息呢?
[P]     error . . . . . . . . . . . . . . . . . . . . . . . .  Return code 198
        invalid syntax;
        option __________ incorrectly specified;
        option __________ not allowed;
        __________ invalid;
        range invalid;
        __________ invalid obs no;
        invalid filename;
        __________ invalid varname;
        __________ invalid name;
        multiple by's not allowed;
        __________ found where number expected;
        on or off required;
        All items in this list indicate invalid syntax.  These errors
        are often, but not always, due to typographical errors.  Stata
        attempts to provide you with as much information as it can.
        Review the syntax diagram for the designated command.
        In giving the message "invalid syntax", Stata is not helpful.
        Errors in specifying expressions often result in this message.
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这是错误信息