filter.spot {genArise} | R Documentation

## Intensity-based filtering of array elements

### Description

This function keep only array elements with intensities that are 2 standard deviation above background.

### Usage

    filter.spot(mySpot)

### Arguments

`mySpot` | Spot object for one microarray.

### Value

Array elements with intensities that are 2 standard deviation above background.

### References

John Quackenbush "Microarray data normalization and transformation". Nature Genetics. Vol.32 supplement pp496-501 (2002)

### Examples

    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)

[Package genArise version 1.56.0 Index]