Table 1

Data transformations implemented in flowCore.

Data Transformations


linear

ax + b

quadratic

ax2 + bx + c

natural logarithm

loge(x)(r/d)

logarithm

logb(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


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.

Hahne et al. BMC Bioinformatics 2009 10:106   doi:10.1186/1471-2105-10-106

Open Data