y
separately within values of x
. It is used by maNormMAD
for MAD scale normalization.
maMAD(x, y, geo=TRUE, subset=TRUE)
TRUE
, the MAD of each group is divided by the
geometric mean of the MADs across groups (cf. Yang et al. (2002)). This allows observations to
retain their original units.Y. H. Yang, S. Dudoit, P. Luu, and T. P. Speed (2001). Normalization for cDNA microarray data. In M. L. Bittner, Y. Chen, A. N. Dorsel, and E. R. Dougherty (eds), Microarrays: Optical Technologies and Informatics, Vol. 4266 of Proceedings of SPIE.
Y. H. Yang, S. Dudoit, P. Luu, D. M. Lin, V. Peng, J. Ngai, and T. P. Speed (2002). Normalization for cDNA microarray data: a robust composite method addressing single and multiple slide systematic variation. Nucleic Acids Research, Vol. 30, No. 4.
maNormMain
, maNormMAD
, mad
.# See examples for maNormMain.
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