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# Re: st: BatPlot options and Creating a Matrix

 From Diego Bellavia <[email protected]> To [email protected] Subject Re: st: BatPlot options and Creating a Matrix Date Fri, 5 Aug 2011 19:39:13 +0100 (BST)

```Hi Nick,

concord works like a charm, thank you very much (BTW, I would like to manipulate
a little bit more the B-A plots I get with the loa options, is there any help
online where I could look at ?)

statsby looked promising but I am now studying how to report everything with the
"matrix" command, it seems more difficult to understand but also extremely
powerful.

Thank you so much for the brief  but effective reply !

Diego

----- Messaggio originale -----
Da: Nick Cox <[email protected]>
A: "[email protected]" <[email protected]>
Inviato: Gio 4 agosto 2011, 09:50:32
Oggetto: Re: st: BatPlot options and Creating a Matrix

On the second question, check out -statsby-.

Nick

On 4 Aug 2011, at 12:44, Diego Bellavia <[email protected]> wrote:

> Dear Statalisters,
>
> I am struggling with batplot (quiet successfully I must say) and I have a
>couple
> of questions regarding the use of this command:
>
>
> 1) Is there any way to modify the Y axis label options so that the "dashed"
> green line would be centered to 0 value on Y axis and the limits of agreements
> would be symmetric around the zero then ? Using the ylab options I can change
> the label but not the position of the graph...
>
> 2) The "grey" area defined by the B-A plot (using the notrend option) defines
> 95% limits of agreeement, am I correct ?
>
>
> 3) My Mentor here asked me to compute the "Bias" for the inter-observer
> agreement in the same dataset of measures. I am assuming this is the simple
> coefficient of variation (obtained as 100 * SDdiff / Mean-diff) am I correct ?
>
>
>
> I have also another question, totally unrelated to B-A plots:
>
> I have to run several simple regression models and would like to automatically
> group results
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```