[BioC] codes for pairing

[anna [guest]]

Hello,
I do not understand what codes makes the difference between a comaprison of paired samples, and the comparison of independant samples,
thank you in advance,
anna

 -- output of sessionInfo(): 

R version 2.15.1 (2012-06-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=French_France.1252  LC_CTYPE=French_France.1252   
[3] LC_MONETARY=French_France.1252 LC_NUMERIC=C                  
[5] LC_TIME=French_France.1252    

attached base packages:
[1] splines   stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] edgeR_3.0.0  limma_3.14.1

loaded via a namespace (and not attached):
[1] tools_2.15.1


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