filter.spot {genArise} | R Documentation |
This function keep only array elements with intensities that are 2 standard deviation above background.
filter.spot(mySpot)
mySpot |
Spot object for one microarray. |
Array elements with intensities that are 2 standard deviation above background.
John Quackenbush "Microarray data normalization and transformation". Nature Genetics. Vol.32 supplement pp496-501 (2002)
data(Simon) ## background correction and save it in c.spot c.spot <- bg.correct(Simon) ## normalize spot n.spot <- grid.norm(c.spot, nr = 23, nc = 24) ## filtering the spot filter.spot(n.spot)