OpenML (version 1.12)

listOMLDataSets: List the first 5000 OpenML data sets.

Description

The returned data.frame contains the data set id “data.id”, the “status” (“active”, “deactivated”, “in_preparation”) and describing data qualities.

Note that by default only active data sets (due to “status = "active"”) will be returned. Furthermore, the argument “limit = 5000” will limit the number of results to 5000.

Usage

listOMLDataSets(
  number.of.instances = NULL,
  number.of.features = NULL,
  number.of.classes = NULL,
  number.of.missing.values = NULL,
  tag = NULL,
  data.name = NULL,
  limit = 5000,
  offset = NULL,
  status = "active",
  verbosity = NULL
)

Value

[data.frame].

Arguments

number.of.instances

[numeric(1) | numeric(2)]
If not NULL, subsets the entries with respect to the given values or, if a vector of length 2 is passed, the given ranges.

number.of.features

[numeric(1) | numeric(2)]
If not NULL, it subsets the entries with respect to the given values or, if a vector of length 2 is passed, the given range.

number.of.classes

[numeric(1) | numeric(2)]
If not NULL, subsets the entries with respect to the given values or, if a vector of length 2 is passed, the given ranges.

number.of.missing.values

[numeric(1) | numeric(2)]
If not NULL, subsets the entries with respect to the given values or, if a vector of length 2 is passed, the given ranges.

tag

[character]
If not NULL only entries with the corresponding tags are listed.

data.name

[character(1)]
Name of the data set.

limit

[numeric(1)]
Optional. The maximum number of entries to return. Without specifying offset, it returns the first 'limit' entries. Setting limit = NULL returns all available entries.

offset

[numeric(1)]
Optional. The offset to start from. Should be indices starting from 0, which do not refer to IDs. Is ignored when no limit is given.

status

[character]
Subsets the results according to the status. Possible values are {"active", "deactivated", "in_preparation", "all"}. Default is "active".

verbosity

[integer(1)]
Print verbose output on console? Possible values are:
0: normal output,
1: info output,
2: debug output.
Default is set via setOMLConfig.

See Also

Other listing functions: chunkOMLlist(), listOMLDataSetQualities(), listOMLEstimationProcedures(), listOMLEvaluationMeasures(), listOMLFlows(), listOMLRuns(), listOMLSetup(), listOMLStudies(), listOMLTaskTypes(), listOMLTasks()

Other data set-related functions: OMLDataSetDescription, OMLDataSet, convertMlrTaskToOMLDataSet(), convertOMLDataSetToMlr(), deleteOMLObject(), getOMLDataSet(), tagOMLObject(), uploadOMLDataSet()

Examples

# \dontrun{
# 	datasets = listOMLDataSets()
# 	tail(datasets)
# }