getA {oligo} | R Documentation |
Methods to compute average log-intensities and log-ratios across alleles, within strand.
getA(object) getM(object)
object |
SnpQSet object. |
SNPRMA summarizes the SNP information into 4 quantities (log2-scale):
The average log-intensities are given by:
(antisenseThetaA+antisenseThetaB)/2
and
(senseThetaA+senseThetaB)/2
.
The average log-ratios are given by:
antisenseThetaA-antisenseThetaB
and
senseThetaA-senseThetaB
.
A 3-dimensional array (SNP's x Samples x Strand) with the requested
measure.
If a Genomewide array (like Affy SNP 6.0) is used, the strand
dimension described above is dropped.