Name

adams.flow.transformer.WekaInstancesMerge

Synopsis

Merges multiple datasets, either from file or using Instances/Instance objects.
If no 'ID' attribute is named, then all datasets must contain the same number of rows.
Attributes can be excluded from ending up in the final dataset via a regular expression. They can also be prefixed with name and/or index.

Additional information

Flow input/output:
- input: java.lang.String[], java.io.File[], weka.core.Instance[], weka.core.Instances[]
- output: weka.core.Instances

See also

• adams.flow.transformer.WekaDatasetsMerge

Options

• loggingLevel
  

  The logging level for outputting errors and debugging output.

  command-line	-logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST>
  default	WARNING
  min-user-mode	Expert

  
  
• name
  

  The name of the actor.

  command-line	-name <java.lang.String>
  default	WekaInstancesMerge

  
  
• annotations
  

  The annotations to attach to this actor.

  command-line	-annotation <adams.core.base.BaseAnnotation>
  default

  
  
• skip
  

  If set to true, transformation is skipped and the input token is just forwarded as it is.

  command-line	-skip <boolean>
  default	false

  
  
• stopFlowOnError
  

  If set to true, the flow execution at this level gets stopped in case this actor encounters an error; the error gets propagated; useful for critical actors.

  command-line	-stop-flow-on-error <boolean>
  default	false
  min-user-mode	Expert

  
  
• silent
  

  If enabled, then no errors are output in the console; Note: the enclosing actor handler must have this enabled as well.

  command-line	-silent <boolean>
  default	false
  min-user-mode	Expert

  
  
• usePrefix
  

  Whether to prefix the attribute names of each dataset with an index and an optional string.

  command-line	-use-prefix <boolean>
  default	false

  
  
• addIndex
  

  Whether to add the index of the dataset to the prefix.

  command-line	-add-index <boolean>
  default	false

  
  
• remove
  

  If true, only keep instances where data is available from each source.

  command-line	-remove <boolean>
  default	false

  
  
• prefix
  

  The optional prefix string to prefix the index number with (in case prefixes are used); '@' is a placeholder for the relation name.

  command-line	-prefix <java.lang.String>
  default	dataset

  
  
• prefixSeparator
  

  The separator string between the generated prefix and the original attribute name.

  command-line	-prefix-separator <java.lang.String>
  default	-

  
  
• excludedAttributes
  

  The regular expression used on the attribute names, to determine whether an attribute should be excluded or not (matching sense can be inverted); leave empty to include all attributes.

  command-line	-exclude-atts <java.lang.String>
  default

  
  
• invertMatchingSense
  

  Whether to invert the matching sense of excluding attributes, ie, the regular expression is used for including attributes.

  command-line	-invert <boolean>
  default	false

  
  
• uniqueID
  

  The name of the attribute (string/numeric) used for uniquely identifying rows among the datasets.

  command-line	-unique-id <java.lang.String>
  default

  
  
• keepOnlySingleUniqueID
  

  If enabled, only a single instance of the unique ID attribute is kept.

  command-line	-keep-only-single-unique-id <boolean>
  default	false

  
  
• strict
  

  If enabled, ensures that IDs in unique ID column are truly unique.

  command-line	-strict <boolean>
  default	false