f.log {cwhstat} | R Documentation |
f.log
determines a positive offset s for zero values to
be used in a subsequent log transforamtion.
f.log(x)
x |
vector of data. |
The transformed values log10(data + s).
The value for the offset s is optimized to render ...
W.Stahel, ETH Zuerich, werner.stahel@stat.math.ethz.ch
x <- c(rep(0,20), exp(rnorm(1000))) fx <- f.log(x) oldpar <- par(mfrow = c(2, 2)) plot(x) plot(fx) qqnorm(x) qqnorm(fx) par(oldpar)