Replace p-values of zero

replaceZeroPvalue(p, factor = 1)

Arguments

p: A numeric vector, containing p-values. Zero values will be replaced by a small, non-zero value.
factor: A numeric vector, the minimal p-value will be multiplied by it. Useful for pQnormScore, because there the p-value needs to be divided by two, therefore a factor of two makes sense.

Value

A numeric vector of the same length as the input vector, with zeros replaced by the minimal absolute double value defined by the machine multiplied by the factor.

Note

Values under the minimal positive double value are considered zero and replaced.

Examples

ps <- seq(0,1,0.1)
replaceZeroPvalue(ps)
#>  [1] 2.225074e-308  1.000000e-01  2.000000e-01  3.000000e-01  4.000000e-01
#>  [6]  5.000000e-01  6.000000e-01  7.000000e-01  8.000000e-01  9.000000e-01
#> [11]  1.000000e+00
replaceZeroPvalue(ps, factor=2)
#>  [1] 4.450148e-308  1.000000e-01  2.000000e-01  3.000000e-01  4.000000e-01
#>  [6]  5.000000e-01  6.000000e-01  7.000000e-01  8.000000e-01  9.000000e-01
#> [11]  1.000000e+00