inverseLogicleTransform: Computes the inverse of the transform defined by the...

Description Usage Arguments Author(s) References See Also Examples

View source: R/AllClasses.R

Description

inverseLogicleTransform can be use to compute the inverse of the Logicle transformation. The parameters w, t, m, a for calculating the inverse are obtained from the 'trans' input passed to the 'inverseLogicleTransform' function. (The inverseLogicleTransform method makes use of the C++ implementation of the inverse logicle transform contributed by Wayne Moore et al.)

Usage

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inverseLogicleTransform(trans,transformationId,...)

Arguments

trans

An object of class 'transform' created using the 'logicleTransform' function or class 'transformList' created by 'estimateLogicle'. The parameters w, t, m, a for calculating the inverse are obtained from the 'trans' input passed to the 'inverseLogicleTransform' function.

transformationId

A name to assigned to the inverse transformation. Used by the transform routines.

...

not used.

Author(s)

Wayne Moore, N. Gopalakrishnan

References

Parks D.R., Roederer M., Moore W.A.(2006) A new "logicle" display method avoids deceptive effects of logarithmic scaling for low signals and compensated data. CytometryA, 96(6):541-51.

See Also

logicleTransform

Examples

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data(GvHD)
samp <- GvHD[[1]] 

#########inverse the transform object###############
logicle  <- logicleTransform(t = 10000, w = 0.5, m = 4.5 , a =0 ,"logicle")
## transform FL1-H parameter using logicle transformation
after <- transform(samp, transformList('FL1-H', logicle))

## Inverse transform the logicle transformed data to retrieve the original data
invLogicle <- inverseLogicleTransform(trans = logicle)
before <- transform (after, transformList('FL1-H', invLogicle))

#########inverse the transformList object###############
translist <- estimateLogicle(samp, c("FL1-H", "FL2-H"))
after <- transform(samp, translist)
## Inverse 
invLogicle <- inverseLogicleTransform(translist)
before <- transform (after, invLogicle)

flowCore documentation built on May 11, 2018, 6:01 p.m.