logTrafo Natural logarithm.
sqrtTrafo Square root.
If negative values occur and the trafo function can handle only positive values,
a shift of the form x - min(x) + 1 is performed prior to the transformation if the
argument handle.violations
is set to “warn” which is the default
value.
trafoLog(base = 10, handle.violations = "warn")trafoSqrt(handle.violations = "warn")
[numeric(1)
]
The base with respect to which logarithms are computed.
Default is 10
.
[character(1)
]
What should be done, if negative values occur? Setting this option to
“warn”, which is the default, shifts the function. “error”
stops the process immediately.
None