[BioC] | Correlation | > 1 (limma)

[Naomi Altman]

Thank you for the clarification.  The documentation does say that.
--Naomi

At 12:17 AM 11/13/2005, Gordon Smyth wrote:
>Hi Naomi,
>
>>[BioC] | Correlation | > 1 (limma)
>>Naomi Altman naomi at stat.psu.edu
>>Sat Nov 12 20:54:37 CET 2005
>>
>>I just used intraspotCorrelation as suggested in the online Limma
>>documentation for single channel analysis.
>>Over half of my estimated correlation coefficients are bigger than
>>1.0 in absolute value.
>>
>>Naomi S. Altman                                814-865-3791 (voice)
>>Associate Professor
>>Dept. of Statistics                              814-863-7114 (fax)
>>Penn State University                         814-865-1348 (Statistics)
>>University Park, PA 16802-2111
>
>Just to make it confusing :) the correlations are stored on the 
>atanh (unconstrained) scale. To get correlations on the usual scale,
>
> > corcoef <- tanh( corfit at all.correlations )
>
>Cheers
>Gordon
>

Naomi S. Altman                                814-865-3791 (voice)
Associate Professor
Dept. of Statistics                              814-863-7114 (fax)
Penn State University                         814-865-1348 (Statistics)
University Park, PA 16802-2111