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Re: st: Confirming whether a variable is binary or continuous
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Confirming whether a variable is binary or continuous
Date
Sat, 17 Mar 2012 07:05:00 +0000
Variations on this are often used inside Stata commands
sort var
assert var == var[1] | var == var[_N]
Here -var- must be one of two distinct values, but nothing specifies
what they are precisely.
Nick
On Fri, Mar 16, 2012 at 11:39 PM, daniel klein
<[email protected]> wrote:
> Nick,
>
> very smart solution, thanks. Seems it is often the simple solutions
> that are so hard to find.
>
> The difference to the "-tabulate- solution" is that <var> is allowed
> to be a constant here, which is perfectly alright for a binary
> variable. It is for Bert to decide whether the indicators are allowed
> to be constant or have to vary.
>
> Daniel
>
> --
> You can also do this by e.g.
>
> assert inlist(var, 0. 1)
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