getDataCensus: Get Census KDD data set (+variation)

In SPOTMisc: Misc Extensions for the 'SPOT' Package

Get Census KDD data set (+variation)

Description

This function downloads (or loads from cache folder) the Census KDD Dataset (OpenML ID: 4535). If requested, data set is changed w.r.t the number of observations, number of numerical/categorical feature, the cardinality of the categorical features, and the task type (regr. or classif).

Usage

getDataCensus(
  task.type = "classif",
  nobs = 50000,
  nfactors = "high",
  nnumericals = "high",
  cardinality = "high",
  data.seed = 1,
  cachedir = "oml.cache",
  target = NULL,
  cache.only = FALSE
)

Arguments

task.type	character, either "classif" or "regr".
nobs	integer, number of observations uniformly sampled from the full data set.
nfactors	character, controls the number of factors (categorical features) to use. Can be "low", "med", "high", or "full" (full corresponds to original data set).
nnumericals	character, controls the number of numerical features to use. Can be "low", "med", "high", or "full" (full corresponds to original data set).
cardinality	character, controls the number of factor levels (categories) for the categorical features. Can be "low", "med", "high" (high corresponds to original data set).
data.seed	integer, this will be used via set.seed() to make the random subsampling reproducible. Will not have an effect if all observations are used.
cachedir	character. The cache directory, e.g., "oml.cache". Default: "oml.cache".
target	character "age" or "income_class". If target = age, the numerical varible age is converted to a factor: age<-as.factor(age<40)
cache.only	logical. Only try to retrieve the object from cache. Will result in error if the object is not found. Default is TRUE.

Value

census data set

Examples

## Example downloads OpenML data, might take some time:
task.type <- "classif"
nobs <- 1e4 # max: 229285
data.seed <- 1
nfactors <- "full"
nnumericals <- "low"
cardinality <- "med"
censusData <- getDataCensus(
  task.type = task.type,
  nobs = nobs,
  nfactors = nfactors,
  nnumericals = nnumericals,
  cardinality = cardinality,
  data.seed = data.seed,
  cachedir = "oml.cache",
  target="age")
  

SPOTMisc documentation built on Sept. 5, 2022, 5:06 p.m.