log1mexp

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Compute f(a) = \(\mathrm{log}\)(1 - \(\mathrm{exp}\)(-a)) Numerically Optimally

Compute f(a) = log(1 - exp(-a)) quickly and numerically accurately.

Keywords
math
Usage
log1mexp(x)
Arguments
x

numeric vector of positive values.

References

Martin M<U+00E4>chler (2012). Accurately Computing \(\log(1-\exp(-|a|))\); https://CRAN.R-project.org/package=Rmpfr/vignettes/log1mexp-note.pdf.

See Also

The log1mexp() function in CRAN package copula, and the corresponding vignette (in the ‘References’).

Aliases
  • log1mexp
Documentation reproduced from package DPQ, version 0.3-3, License: GPL (>= 2)

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