[BioC] Quantile normalization in Ringo package

Joern Toedling Joern.Toedling at curie.fr
Mon Sep 27 13:48:54 CEST 2010


Hi,

you can use the 'normalizeBetweenArrays' function from package limma with
method="quantile" on your RGList and then convert the resulting MAList using
the function asExprSet from the Ringo package.
Please check the source code of "preprocess", as it does the same thing for
other methods.
So it's possible, but you will have to decide whether this kind of strong
normalization is appropriate with your data.

Regards,
Joern


On Fri, 24 Sep 2010 18:41:51 +0200, Mohamed Lajnef wrote
> Dear all
> 
> I'd like to use quantile ( not Rquantile or Gquantile) 
>  normalization in preprocess function in Ringo package, it's 
> possible to do that ? Any help would be appreciated Regards M
> 
> -- 
> ####################################
> Mohamed Lajnef,IE INSERM U955 eq 15#
> Pôle de Psychiatrie 		   #	
> Hôpital CHENEVIER                  #
> 40, rue Mesly                      #
> 94010 CRETEIL Cedex FRANCE         #
> Mohamed.lajnef at inserm.fr           #
> tel : 01 49 81 31 31 (poste 18467) #
> Sec : 01 49 81 32 90               #
> fax : 01 49 81 30 99               #
> ####################################
> 
> 	[[alternative HTML version deleted]]


---
Joern Toedling
Institut Curie -- U900
26 rue d'Ulm, 75005 Paris, FRANCE
Tel. +33 (0)156246927



More information about the Bioconductor mailing list