> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of David Airey
> Sent: Tuesday, May 03, 2005 5:36 PM
> To: [email protected]
> Subject: st: [Stata 9] scatter axis bug
>
> I have some weird behavior in a simple scatter plot. The choice of
> axis range takes on the range of the data if one looked at each
> variable one at a time, but not the range of the plotted data. For
> example,
>
> . d ln_rna hrsd17
>
> storage display value
> variable name type format label variable label
> ------------------------------------------------------------------------
> -------
> ln_rna float %9.0g
> hrsd17 byte %8.0g
>
> . scatter ln_rna hrsd17 // <-- gives a bad graph with lots of white
> space around the cloud
>
> // y range 2 to -2, x range 10 to 35
> // from below it should have reflected the common range
>
> . summ ln_rna hrsd17
>
> Variable | Obs Mean Std. Dev. Min Max
> -------------+--------------------------------------------------------
> ln_rna | 69 .5711169 .6988654 -1.479932 2.003551
> hrsd17 | 107 22.31776 3.664202 11 33
>
> . summ ln_rna hrsd17 if ln_rna < . & hrsd17 < .
>
> Variable | Obs Mean Std. Dev. Min Max
> -------------+--------------------------------------------------------
> ln_rna | 32 .569358 .7230897 -.6635817 2.003551
> hrsd17 | 32 23 3.360108 16 31
>
>
>
> // a simple example of the problem:
>
> input y x
> 1 .
> 20 50
> 30 40
> 40 30
> 50 20
> . 1
> end
>
> scatter y x
>
> // gives the range of the scatter plot as 0-50 on both axes--this
> looks stupid--can we fix this?
>
Dave,
How about:
scatter y x if !mi(x,y) (?)
One thing to consider is that your original graph informs the reader that
there are missing observations in the data set, which would not be apparent
if the range was restricted jointly non-missing values.
Scott
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