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Re: st: BatPlot options and Creating a Matrix


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: BatPlot options and Creating a Matrix
Date   Thu, 4 Aug 2011 14:50:32 +0100

On the second question, check out -statsby-.

On the first, see also -concord- (-findit concord- for locations).

Nick

On 4 Aug 2011, at 12:44, Diego Bellavia <messadua@yahoo.it> 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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