Skip to main content

Table 1 List of CNV analysis software

From: Software comparison for evaluating genomic copy number variation for Affymetrix 6.0 SNP array platform

Software

CN

locus-level CN (LRR = Log2R)†

Normalization (default target distribution)

Genomic-wave or GC correction

Batch-effect removal

PennCNV

Relative

*R = (A + B)/

Rexp

Quantile (HapMap)

-

-

Aroma.Affymetrix

Relative

R = (A + B)/

median(A + B)

First, calibrates for offset and allelic crosstalk. Second, performs quantile (self).

Post normalization, corrects for PCR fragment length and GC content.

-

Affymetrix Power Tools (APT)

Relative

R = (A + B)/

median(A + B)

Quantile (self)

-

-

CRLMM

Absolute

**Linear model

Quantile (HapMap)

-

Standard argument to specify in the linear model

  1. † A denotes the A-allele intensity and B the B-allele intensity for the corresponding probe.
  2. * Rexp is computed from linear interpolation of canonical genotype clusters [4].
  3. ** Corrects for optical noise and non-specific binding in the linear model.