你查查reg的命令的帮助，上面有命令的选项

论坛上还有stata的手册，上面讲的很详细。

help regress                                                                     dialogs:  regress  svy: regress   
                                                                                also see:  regress postestimation  
                                                                                           regress postestimation ts
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Title

    [R] regress -- Linear regression

Syntax

        regress depvar [indepvars] [if] [in] [weight] [, options]

    options               description
    --------------------------------------------------------------------------------------------------------------
    Model
      noconstant          suppress constant term
      hascons             has user-supplied constant
      tsscons             compute total sum of squares with constant; seldom used

    SE/Robust
      vce(vcetype)        vcetype may be ols, robust, cluster clustvar, bootstrap, jackknife, hc2, or hc3

    Reporting
      level(#)            set confidence level; default is level(95)
      beta                report standardized beta coefficients
      eform(string)       report exponentiated coefficients and label as string
      noheader            suppress table header
      plus                make table extendable
      depname(varname)    substitute dependent variable name; programmer's option

    + mse1                force MSE to be 1
    --------------------------------------------------------------------------------------------------------------