This is a CPOConstructor
to be used to create a
CPO
. It is called like any R function and returns
the created CPO
.
Select columns by type or name. The parameters “type” and “pattern” are additive; if both are given, all column that match either will be returned.
cpoSelectFreeProperties
behaves just as cpoSelect
, with the additional function
that it is treated like a CPO
that removes all data properties from the data.
This disables the internal property check and can be useful when trying to compose CPO
s
that do not have compatible properties.
cpoSelect( type = character(0), index = integer(0), names = character(0), pattern = NULL, pattern.ignore.case = FALSE, pattern.perl = FALSE, pattern.fixed = FALSE, invert = FALSE, id, export = "export.default", affect.type = NULL, affect.index = integer(0), affect.names = character(0), affect.pattern = NULL, affect.invert = FALSE, affect.pattern.ignore.case = FALSE, affect.pattern.perl = FALSE, affect.pattern.fixed = FALSE ) cpoSelectFreeProperties( type = character(0), index = integer(0), names = character(0), pattern = NULL, pattern.ignore.case = FALSE, pattern.perl = FALSE, pattern.fixed = FALSE, invert = FALSE, id, export = "export.default", affect.type = NULL, affect.index = integer(0), affect.names = character(0), affect.pattern = NULL, affect.invert = FALSE, affect.pattern.ignore.case = FALSE, affect.pattern.perl = FALSE, affect.pattern.fixed = FALSE )
type | [ |
---|---|
index | [ |
names | [ |
pattern | [ |
pattern.ignore.case | [ |
pattern.perl | [ |
pattern.fixed | [ |
invert | [ |
id | [ |
export | [ |
affect.type | [ |
affect.index | [ |
affect.names | [ |
affect.pattern | [ |
affect.invert | [ |
affect.pattern.ignore.case | [ |
affect.pattern.perl | [ |
affect.pattern.fixed | [ |
[CPO
].
This function creates a CPO object, which can be applied to
Task
s, data.frame
s, link{Learner}
s
and other CPO objects using the %>>%
operator.
The parameters of this object can be changed after creation
using the function setHyperPars
. The other
hyper-parameter manipulating functins, getHyperPars
and getParamSet
similarly work as one expects.
If the “id” parameter is given, the hyperparameters will have this id as aprefix; this will, however, not change the parameters of the creator function.
CPOConstructor
CPO constructor functions are called with optional values of parameters, and additional “special” optional values.
The special optional values are the id
parameter, and the affect.*
parameters. The affect.*
parameters
enable the user to control which subset of a given dataset is affected. If no affect.*
parameters are given, all
data features are affected by default.
Other CPOs:
cpoApplyFunRegrTarget()
,
cpoApplyFun()
,
cpoAsNumeric()
,
cpoCache()
,
cpoCbind()
,
cpoCollapseFact()
,
cpoDropConstants()
,
cpoDummyEncode()
,
cpoFilterAnova()
,
cpoFilterCarscore()
,
cpoFilterChiSquared()
,
cpoFilterFeatures()
,
cpoFilterGainRatio()
,
cpoFilterInformationGain()
,
cpoFilterKruskal()
,
cpoFilterLinearCorrelation()
,
cpoFilterMrmr()
,
cpoFilterOneR()
,
cpoFilterPermutationImportance()
,
cpoFilterRankCorrelation()
,
cpoFilterRelief()
,
cpoFilterRfCImportance()
,
cpoFilterRfImportance()
,
cpoFilterRfSRCImportance()
,
cpoFilterRfSRCMinDepth()
,
cpoFilterSymmetricalUncertainty()
,
cpoFilterUnivariate()
,
cpoFilterVariance()
,
cpoFixFactors()
,
cpoIca()
,
cpoImpactEncodeClassif()
,
cpoImpactEncodeRegr()
,
cpoImputeConstant()
,
cpoImputeHist()
,
cpoImputeLearner()
,
cpoImputeMax()
,
cpoImputeMean()
,
cpoImputeMedian()
,
cpoImputeMin()
,
cpoImputeMode()
,
cpoImputeNormal()
,
cpoImputeUniform()
,
cpoImpute()
,
cpoLogTrafoRegr()
,
cpoMakeCols()
,
cpoMissingIndicators()
,
cpoModelMatrix()
,
cpoOversample()
,
cpoPca()
,
cpoProbEncode()
,
cpoQuantileBinNumerics()
,
cpoRegrResiduals()
,
cpoResponseFromSE()
,
cpoSample()
,
cpoScaleMaxAbs()
,
cpoScaleRange()
,
cpoScale()
,
cpoSmote()
,
cpoSpatialSign()
,
cpoTransformParams()
,
cpoWrap()
,
makeCPOCase()
,
makeCPOMultiplex()