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

Description Usage Arguments Author(s) References See Also Examples

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(transformationId, trans)

Arguments

transformationId

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

trans

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

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]] 
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))


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