Description Usage Arguments Value Author(s) Examples
Charcoal data transformation, background estimation and homogenization for
unique to multiple series, accepts objects returned by
pfSiteSel
.
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ID |
An object returned by |
add |
An object returned by |
Interpolate |
Logical, idicates wether data should be interpolated or not, default=FALSE |
Age |
Numeric, If Interpolate=TRUE, Age is used to specified the ages where the interpolation took place, If Age=NULL (default) the interpolated ages are automatically specified using the median resolution of the record(s). If Age is specified as a vector (e.g. Age=(from=0,to=10000, by=10)) the interpolation took place at specified ages. |
method |
A character indicating the transformation method: "Z-Score",
Z-Score, "LOESS", Locally weighted regression, "SmoothSpline", Smoothing
spline, "Box-Cox", Box-Cox transformation, "MinMax", Minimax transformation,
"RunMed", Running median, "RunMean", Running mean, "RunQuantile", Running
quantile, "RunMin", Running min, "RunMax", Running max, "stl", Decompose a
time series into seasonal, trend and irregular components using loess, based
on |
BasePeriod |
Numeric, a parameter specifying the base period for calculating Z-score given in years BP (e.g. BasePeriod=c(0, 4000)), if empty or unspecified the base period corresponds to record length. |
span |
Numeric, the span parameter for the LOESS or Smoothing spline methods |
RunWidth |
Numeric, the width of the window for the"RunMed", "RunMean", "RunQuantile", "RunMin", and "RunMax" methods in years. |
RunQParam |
Numeric, the parameter specifying which quantile should be calculated for the method "RunQuantile" (default=0.5 i.e. median). |
stlYears |
Numeric, the bandwidth for stl decomposition, default=500 years. |
type |
Character, the type of Box-Cox transformation, see
|
alpha |
Numeric, alpha value to add before BoxCox calculation, see
|
QuantType |
Character, by default QuantType="INFL" and influx are automatically calculated, otherwise use QuantType="NONE" (not recommended). |
MethodType |
Character, by default (MethodType=NULL) imply that when for a specific site two charcoal unit exist the function pick the one define by pref_unit. By passing different arguments to MethodType user can modify the analysis to pick non preferred units by referring to more general methods for instance MethodType = "POLS" will choose charcoal records from pollen slides, or MethodType = "SIEV" sieved macro charcoal series. Type (paleofiredata); levels(paleofiredata$METHOD) for available methods. |
verbose |
Logical, verbose or not... |
An object of the class "pfTransform".
O. Blarquez
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