setpreprocessor: constructor function for adding a new preprocessing technique...
In preprocomb: Tools for Preprocessing Combinations
Description
Usage
Arguments
Details
Value
Description
The main argument is the operation that is executed to transform the data such as "na.omit(basedata)"
for removing rows that have missing values. An operation can process either only the numeric
columns or also the class label column.
Usage
1
setpreprocessor(classname, operation)
Arguments
classname
(character)
operation
(expression as character string)
Details
Preprocessing techniques defined with setpreprocessor() can be combined to a phase.
Phases defined with setphase() can be combined to a grid of combinations with setgrid().
The user-defined S4 class definitions are stored in global environment and thus the function can not be used from an other package.
scaleexample <- function(dataobject) dataobject <- initializedataclassobject(data.frame(x=scale(dataobject@x), dataobject@y))
setpreprocessor("scaleexample", "scaleexample(dataobject)")
Value
NULL, side-effect: definition of S4 class derived from PreprocessorClass and corresponding transformdata-method
preprocomb documentation built on May 2, 2019, 3:23 a.m.
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Description Usage Arguments Details Value
Description
The main argument is the operation that is executed to transform the data such as "na.omit(basedata)" for removing rows that have missing values. An operation can process either only the numeric columns or also the class label column.
Usage
1 | setpreprocessor(classname, operation)
|
Arguments
classname |
(character) |
operation |
(expression as character string) |
Details
Preprocessing techniques defined with setpreprocessor() can be combined to a phase. Phases defined with setphase() can be combined to a grid of combinations with setgrid().
The user-defined S4 class definitions are stored in global environment and thus the function can not be used from an other package.
scaleexample <- function(dataobject) dataobject <- initializedataclassobject(data.frame(x=scale(dataobject@x), dataobject@y)) setpreprocessor("scaleexample", "scaleexample(dataobject)")
Value
NULL, side-effect: definition of S4 class derived from PreprocessorClass and corresponding transformdata-method
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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