breakpoints.ProbBin {rflowcyt}R Documentation

Obtain break points for Probability binning

Description

To define the break points in data.var in which there are N observations in each bin.

Usage

breakpoints.ProbBin(data.var, N)

Arguments

data.var a vector of numeric data values for the break points to be determined
N the number of data points between two breaks

Details

This function is used to determine the break points that can be used to specify a ProbBin.FCS object as well as a hist object.

Please note that each bin in the histograms (in ProbBin.FCS) will be determined such that the end point is included (ie, for a<b, (a,b] is the bin interval for break points a & b.

Thus, the output of this function will have min(data.var)-1 as the first break point and max(data.var) as the last break point such that (min(data.var)-1, min(data.var)] is the first bin/interval of the break points.

Value

a vector of the numerical breaks

Author(s)

Zoe Moodie, A.J. Rossini, J.Y. Wan

References

Mario Roederer, et al. "Probability Binning Comparison: A Metric for Quantitating Univariate Distribution Differences" Cytometry 45:37-46 (2001).

See Also

ProbBin.FCS hist

Examples


  x <- 1:23
  N <- 3

## making a series of cutpoints which have
## an equal number of counts in each bin 
  breaks <- breakpoints.ProbBin(x, N)

  hist(x, br=breaks, plot=FALSE)


[Package rflowcyt version 1.14.0 Index]