Thanks. My experiments indicate that neither the
number of predictors nor the length of their names
are problematic here, at least with Stata/SE. I can't see
what the problem is. Are your Stata executable and ados both fully
up-to-date?
Nick
[email protected]
Rubiana Chamarbagwala
> The exact syntax I used was:
>
> bootstrap "dprobit ftptw p_rate m_rate year88 year93 year99 hhchild
> f_primary f_middle f_high f_college m_primary m_middle m_high
> m_college
> workmom lnpced asset age agesq urban lowcaste muslim season2 season3
> season4 male p_rate_male m_rate_male year88_male year93_male
> year99_male
> hhchild_male f_primary_male f_middle_male f_high_male f_college_male
> m_primary_male m_middle_male m_high_male m_college_male workmom_male
> lnpced_male asset_male age_male agesq_male urban_male lowcaste_male
> muslim_male season2_male season3_male season4_male state1
> state2 state3
> state4
> state5 state6 state7 state8 state9 state10 state11 state12 state13
> state14 state15 state16 state17 state18 state19 state20
> state21 state22
> state23 state24 state25 state26
> state27 state28 state30 state31" "_b[p_rate] _b[m_rate]
> _b[p_rate_male]
> _b[m_rate_male]", reps(1000) cluster(year_state)
>
>
> Nick Cox wrote:
>
> >If you did in fact type
> >
> >...
> >
> >as part of your command then that is invalid
> >syntax. If you didn't type that, then the
> >same comment applies: we need to see _exactly_ what you
> >typed.
> >
> >Nick
> >[email protected]
> >
> >Rubiana Chamarbagwala
> >
> >
> >
> >>Nick - thanks for the information. Here is the syntax I used.
> >>
> >>(1) bootstrap "dprobit y x1 x2 x3 x4 x5" "_b[x1] _b[x2]",
> reps(1000)
> >>cluster(x6) -- this worked.
> >>
> >>(2) bootstrap "dprobit y x1 x2 x3 x4 x5 x7 x8 x9 x10 ...
> x50" "_b[x1]
> >>_b[x2]", reps(1000) cluster(x6) -- this returned "invalid syntax".
> >>
> >>The variables in (2) above include dummies and interctions
> >>with dummies.
> >>
> >>
> >>Nick Cox wrote:
> >>
> >>
> >>
> >>>-whelp limits- indicates various limits.
> >>>
> >>>It is always worth including examples of the
> >>>invalid syntax you used.
> >>>
> >>>I doubt that the explanation of your problem lies
> >>>in the direction you are looking. The error message
> >>>you got would be normally be
> >>>produced well before trying to apply the -regress-
> >>>command. However, without indications of
> >>>what you actually typed it is difficult to help further.
> >>>
> >>>Nick
> >>>[email protected]
> >>>
> >>>Rubiana Chamarbagwala
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>Hi - I am trying to estimate a probit model with lots of
> >>>>
> >>>>
> >>independent
> >>
> >>
> >>>>variables and estimate bootstrapped standard errors for 4
> >>>>
> >>>>
> >>variables.
> >>
> >>
> >>>>Stata keeps returning "invalid syntax" when I include all the
> >>>>independent variables. However, when I include only a few
> >>>>variables, it
> >>>>works. Does anyone know whether or not there is a limit to
> >>>>the number
> >>>>of variables one can include in a regression when one uses
> >>>>the bootstrap command?
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