aum (version 2023.6.14)

aum_diffs_binary: aum diffs binary

Description

Convert binary labels to error differences.

Usage

aum_diffs_binary(label.vec, 
    pred.name.vec, denominator = "count")

Value

data table of class "aum_diffs" in which each rows represents a breakpoint in an error function. Columns are interpreted as follows: there is a change of "fp_diff","fn_diff" at predicted value "pred" for example/observation "example". This can be used for computing Area Under Minimum via aum function, and plotted via plot.aum_diffs.

Arguments

label.vec

Numeric vector representing binary labels (either all 0,1 or all -1,1). If named, names are used to identify each example.

pred.name.vec

Character vector of prediction example names, used to convert names of label.vec to integers.

denominator

Type of diffs, either "count" or "rate".

Author

Toby Dylan Hocking <[e-mail]> [aut, cre], Jadon Fowler [aut] (Contributed exact line search C++ code)

Examples

aum_diffs_binary(c(0,1))
aum_diffs_binary(c(-1,1))
aum_diffs_binary(c(a=0,b=1,c=0), pred.name.vec=c("c","b"))
aum_diffs_binary(c(0,0,1,1,1), denominator="rate")