getXAM.ChipEffectFile {aroma.affymetrix} | R Documentation |
Gets the physical position, log-intensities and log-ratios of chip effects for two arrays of units on a certain chromosome.
## S3 method for class 'ChipEffectFile': getXAM(this, other, chromosome, units=NULL, ..., verbose=FALSE)
other |
The second ChipEffectFile object used as the
reference. |
chromosome |
(The chromosome for which results should be returned. |
units |
(The subset of units to be matched.
If NULL , all units are considered. |
... |
Not used. |
verbose |
See Verbose . |
Returns a Nx3 matrix where N is the number of units returned. The names of the columns are X (physical position in a given chromosome), A (log-intensities) and M (log-ratios). The names of the rows are the unit indices (as indexed by the CDF). Note: The rows are ordered according to chromosomal position.
Henrik Bengtsson (http://www.braju.com/R/)
*getAM()
.
For more information see ChipEffectFile
.