Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: RE: Bootstrapping and t-tests

From   "Nick Cox" <>
To   <>
Subject   st: RE: RE: Bootstrapping and t-tests
Date   Wed, 12 Jun 2002 18:10:29 +0100
> >
> > Is possible to run a bootstrapped  t-test on the paired-observation
> > variables preert and postrt.  I tried the command line below
> >
> > bs "ttest preert=postrt" "_b[preert] _b[postrt", reps(50) n(10)
> >
> > The error message I am getting says:
> > error when command executed on original dataset
> > invalid syntax
> > r(111);

Lee Sieswerda

> At the least, you are missing the right-most square bracket. That is, it
> should be _b[postrt] .

To add to this, -ttest- does not leave behind a vector in _b[].
I am not sure what two numbers you want, or think you would have got,
but the documentation on -ttest- specifies the r class results which may be

Once you sort out that problem, heed the warning emitted by -bs-.


*   For searches and help try:

© Copyright 1996–2017 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index