flow_breaks: Generate the breaks that makes sense for flow data...

In RGLab/flowWorkspace: Infrastructure for representing and interacting with gated and ungated cytometry data sets.

Description

It is mainly used as helper function to construct breaks function used by 'trans_new'.

Usage

flow_breaks(x, n = 6, equal.space = FALSE, trans.fun, inverse.fun)

Arguments

x	the raw data values
n	desired number of breaks (the actual number will be different depending on the data range)
equal.space	whether breaks at equal-spaced intervals
trans.fun	the transform function (only needed when equal.space is TRUE)
inverse.fun	the inverse function (only needed when equal.space is TRUE)

Value

either 10^n intervals or equal-spaced(after transformed) intervals in raw scale.

Examples

library(flowCore)
data(GvHD)
fr <- GvHD[[1]]
data.raw <- exprs(fr)[, "FL1-H"]
flow_breaks(data.raw)

trans <- logicleTransform()
inv <- inverseLogicleTransform(trans = trans)
myBrks <- flow_breaks(data.raw, equal.space = TRUE, trans = trans, inv = inv)
round(myBrks)
#to verify it is equally spaced at transformed scale
print(trans(myBrks))

RGLab/flowWorkspace documentation built on July 18, 2021, 9:05 p.m.