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Table 1 Data transformations implemented in flowCore.

From: flowCore: a Bioconductor package for high throughput flow cytometry

  Data Transformations
linear ax + b
quadratic ax2 + bx + c
natural logarithm log e (x)(r/d)
logarithm log b (x)(r/d)
biexponential ae(b*x)ce(-d+x)+f
logicle Te-(m-w)(e(x-w)-p2e-(x-w)/p+ p2-1)
truncate xxa= a
scale (x-a)/(b-a)
arcsinh arcsinh(a +bx) + c
  1. Within these formulas, x is the variable corresponding to value being transformed, a, b, c, d, f, p, m, T, and w, are constants affecting the transformation function, e is the base of the natural logarithm (see [13] for details on the logicle transformation). Other transformations can easily be implemented in R.