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Figure 8 | BMC Bioinformatics

Figure 8

From: Methodological study of affine transformations of gene expression data with proposed robust non-parametric multi-dimensional normalization method

Figure 8

Affine transformation with negative translation. Affine transformation of the red and the green signals with negative translation where (a G , a R ) = (-87, -24), (b G ,b R ) = (1.4,0.8). Left: Log-ratios as a function of log-intensities for certain fold changes. Right: Translated log-ratios versus true log-ratios. The slope of a line fitted in the M versus M plot will be larger than one, which is due to the negative translation. The grid and the fold-change curves in the left graph, and the intensity curves in the right graph have been truncated such that x R ,x G ≥ 1.

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