Transform p-values to continuous scores with the absolute-log10 transformation

Source: R/pScore.R

The function maps p values between 0 and 1 to continuous scores ranging on R by the following equation: \(abs(log10(p))*sign\)

pAbsLog10Score(p, sign = 1, replaceZero = TRUE)

Arguments

p

p-value(s) between (0,1]

sign

Sign of the score, either positive (in case of positive numbers), negative (in case of negative numbers), or zero. In case a logical vector, TRUE is interpreted as positive and FALSE is interpreted as negative.

replaceZero

Logical, whether to replace zero p-values with the minimal double value specified by the machine. Default is TRUE. If set to FALSE, results will contain infinite values.

Examples


testPvals <- c(0.001, 0.01, 0.05, 0.1, 0.5, 1)
pAbsLog10Score(testPvals)
#> [1] 3.00000 2.00000 1.30103 1.00000 0.30103 0.00000
testPvalSign <- rep(c(-1,1), 3)
pAbsLog10Score(testPvals, sign=testPvalSign)
#> [1] -3.00000  2.00000 -1.30103  1.00000 -0.30103  0.00000
testLog <- rep(c(TRUE, FALSE),3)
pAbsLog10Score(testPvals, testLog)
#> [1]  3.00000 -2.00000  1.30103 -1.00000  0.30103  0.00000