One work-around would be something like
egen group = group(gear_ratio), label
and
_crcslbl group gear_ratio
or
label var group `"`: variable label gear_ratio'"'
and then use -group- for the -by()-.
Nick
[email protected]
Roger Harbord
> How can I persuade -graph twoway-'s -by- option to respect
> the formatting of
> the by-variable?
>
> An example :
>
> . sysuse auto
> (1978 Automobile Data)
>
> . describe gear_ratio
>
> storage display value
> variable name type format label variable label
> ------------------------------------------------------------
> gear_ratio float %6.2f Gear Ratio
>
> . twoway scatter price mpg if gear_ratio <2.5, by(gear_ratio )
>
> The first subgraph's subtitle is not "2.19" as i'd expect but
> "2.190000057220459". The fact that gear_ratio has format
> %6.2f is being
> ignored. One work-around is to convert it to a string:
>
> . gen gear_ratio_str = string(gear_ratio, "%6.2f")
> . twoway scatter price mpg if gear_ratio <2.6, by(gear_ratio_str )
>
> However in general the stringed version of a number will have
> a different sort
> order so the ordering of the subgraphs may not be what i want
> - doesn't affect
> this example but does in my real application. The only
> solution I can think of
> is to label each value with its value - considerable extra
> hassle. Is there a
> simpler way?
>
> (I'm using Stata 8.2 for Windows, updated to 27 Jul 2004.)
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