Table information for 'rr.g_num_stat'

General

Table Description: An experimental table containing advanced statistics for numeric table columns. This is only available for very few tables at this point. Note that the values reported here may be estimates based on a subeset of the table rows.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

Tables containing the information in the IVOA Registry. To query these tables, use our TAP service.

For more information and example queries, see the RegTAP specification.

For a list of all services and tables belonging to this table's resource, see Information on resource 'GAVO RegTAP Service (Potsdam mirror)'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:rr_g_num_stat,
  year=2012,
  title={{GAVO} {RegTAP} Service (Potsdam mirror)},
  author={The {GAVO} data center team},
  url={http://gavo.aip.de/tableinfo/rr.g_num_stat},
  howpublished={{VO} resource provided by the {AIP} {DaCHS}}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
ivoid Ivoid The parent resource. N/A N/A
table_index Table_index Index of the table this column belongs to. N/A N/A
name Col Name of the column (see rr.table_column for more metadata). N/A N/A
fill_factor Fill An estimate for the ratio of non-NULL values in this column to the number of rows in the table. N/A N/A
min_value Min The largest value found in the column. N/A N/A
percentile03 P_3 An estimate for the value in the 3rd percentile of the column's distribution (for a Gaussian, roughly the lower limit of a 2σ interval). N/A N/A
median median An estimate for the median value (or 50th percentile) of the column's distribution N/A N/A
percentile97 P_3 An estimate for the value in the 97th percentile of the column's distribution (for a Gaussian, roughly the upper limit of a 2σ interval). N/A N/A
max_value Max The largest value found in the column. N/A N/A

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.