(can-identify-index-column? dataset)
Returns true
or false
, can the time index column be identified
automatically?
Returns `true` or `false`, can the time index column be identified automatically?
(get-index-column-name-or-error dataset)
Returns the time index column name if it can be identified.
Returns the time index column name if it can be identified.
(get-index-column-or-error dataset)
Returns the time index column of the dataset if it can be identified.
Returns the time index column of the dataset if it can be identified.
(index-column-name dataset)
Returns the name of the index column or nil
. If the :index
meta
is set on the column metadata, that is the name of the index unless
it is invalid; otherwise, if there is a single column that can be
identifed as time data, that will be the column name.
Returns the name of the index column or `nil`. If the `:index` meta is set on the column metadata, that is the name of the index unless it is invalid; otherwise, if there is a single column that can be identifed as time data, that will be the column name.
(index-column-object-class dataset)
Returns the object class of the index column data, if the index column is known.
Returns the object class of the index column data, if the index column is known.
(time-columns dataset)
Returns a list of columns containing time data, if any.
Returns a list of columns containing time data, if any.
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