Get summary statistics of a variable of a table — opal.variable_summary • opalr

Get summary statistics of a variable of a table

opal.variable_summary(
  opal,
  datasource,
  table,
  variable,
  cached = TRUE,
  nature = NULL
)

Arguments

opal: Opal object.
datasource: Name of the datasource.
table: Name of the table in the datasource.
variable: Name of the variable in the table.
cached: Get cached summary if exists. When FALSE, the cached summary is evicted and replaced by the newly calculated one. Default is TRUE.
nature: Force summary nature, independently from the variable. Possible values are: CATEGORICAL, CONTINUOUS, TEMPORAL, GEO, BINARY, UNDETERMINED.

See also

Other datasource functions: opal.annotate(), opal.annotations(), opal.attribute_values(), opal.datasources(), opal.datasource(), opal.tables(), opal.table(), opal.valueset(), opal.variables(), opal.variable()

Examples

if (FALSE) {
o <- opal.login('administrator','password', url='https://opal-demo.obiba.org')
opal.variable_summary(o, 'CNSIM', 'CNSIM1', 'GENDER')
opal.logout(o)
}