quadraticTransform: Create the definition of a quadratic transformation function...

In flowCore: flowCore: Basic structures for flow cytometry data

Description

Create the definition of the quadratic Transformation that will be applied on some parameter via the transform method. The definition of this function is currently x <- a*x\^2 + b*x + c

Usage

quadraticTransform(transformationId="defaultQuadraticTransform", a = 1, b = 1, c = 0)

Arguments

transformationId	character string to identify the transformation
a	double that corresponds to the quadratic coefficient in the equation
b	double that corresponds to the linear coefficient in the equation
c	double that corresponds to the intercept in the equation

Value

Returns an object of class transform.

Author(s)

N. Le Meur

See Also

transform-class, transform

Other Transform functions: arcsinhTransform(), biexponentialTransform(), inverseLogicleTransform(), linearTransform(), lnTransform(), logTransform(), logicleTransform(), scaleTransform(), splitScaleTransform(), truncateTransform()

Examples

samp <- read.FCS(system.file("extdata",
   "0877408774.B08", package="flowCore"))
  quadTrans <- quadraticTransform(transformationId="Quadratic-transformation", a=1, b=1, c=0)
  dataTransform <- transform(samp, transformList('FSC-H', quadTrans))

flowCore documentation built on Nov. 8, 2020, 5:19 p.m.