求答案呀

看outreg2的帮助的例子

我用了  outtreg2 using mytableo1.rtf, stats(dy/dx,se)  然后提示我dy/dx 出错了 提示dy/dx  是无效的。不知道怎么写这句命令了

让你看帮助你看帮助的例子了吗？
有你写的那个命令格式吗？


Example 11. Marginal Effects

    mfx option can be used to report marginal effects after mfx command has been applied.
    sysuse auto, clear
    logit foreign mpg rep78 head
    mfx compute
    outreg2 using myfile, replace
    outreg2 using myfile, mfx ctitle(mfx) see

    margins will report it as well.
    sysuse auto, clear
    logit foreign mpg rep78 head
    margins, dydx(_all) post
    outreg2 using myfile, ctitle(margins) see

    For multiple outcomes, you may want to use mfx2 by Ricahrd Williams or margeff by Tamas Bartus. They are both
    available from ssc.

    margeff example:
    sysuse auto, clear
    mlogit rep turn mpg price
    margeff, at(mean) replace
    outreg2 using myfile, cttop(margeff) see replace

    mfx2 runs a little slower:
    sysuse auto, clear
    mlogit rep turn mpg price
    mfx2, replace
    outreg2 using myfile, long cttop(mfx2) see replace

    The marginal effects reported by dprobit, dlogit2, dprobit2, and dmlogit2 are automatically reported by
    outreg2.

    Because truncreg, marginal, and dtobit report both regression coefficients and marginal effects, the user
    must specify the margin option for outreg2 report the marginal effects.

    dtobit, on the other hand, calculates three different marginal effects.  The user must specify which marginal
    effect, the unconditional, conditional, or the probability uncensored, to be reported. Note that "version 6"
    must be set for dtobit to work.

    version 6: tobit mpg trunk weight, ll(17)
    version 6: dtobit
    outreg2 using myfile, margin(u) ctitle(Unconditional) nor2 replace
    outreg2 using myfile, margin(c) ctitle(Conditional) nor2
    outreg2 using myfile, margin(p) ctitle(Probability) nor2 see

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