Re: pgbench gaussian/exponential docs improvements

On Sun, Oct 25, 2015 at 7:12 PM, Tomas Vondra
<tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
>> By default, or when uniform is specified, all values in the range are
>> drawn with equal probability. Specifying gaussian or exponential
>> options modifies this behavior; each requires a mandatory threshold
>> which determines the precise shape of the distribution.
>
> I find the 'threshold' name to be rather unfortunate, as none of the
> probability distribution functions that I know use this term. And even if
> there's one probability function that uses 'threshold' it has very little
> meaning in the others. For example the exponential distribution uses 'rate'
> (lambda). I'd prefer a neutral name (e.g. 'parameter').

+1 for this change.

(I have no particular opinion on your other suggestions.)

--
Robert Haas
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