tech.ml.protocols.dataset
PColumnarDatasetcljprotocol
metadataclj
(metadata dataset)remove-columnclj
(remove-column dataset col-name)Failes quietly
Failes quietly
supported-column-statsclj
(supported-column-stats dataset)Return the set of natively supported stats for the dataset. This must be at least #{:mean :variance :median :skew}.
Return the set of natively supported stats for the dataset. This must be at least
#{:mean :variance :median :skew}.selectclj
(select dataset colname-seq index-seq)Reorder/trim dataset according to this sequence of indexes. Returns a new dataset. colname-seq - either keyword :all or list of column names with no duplicates. index-seq - either keyword :all or list of indexes. May contain duplicates.
Reorder/trim dataset according to this sequence of indexes. Returns a new dataset. colname-seq - either keyword :all or list of column names with no duplicates. index-seq - either keyword :all or list of indexes. May contain duplicates.
add-columnclj
(add-column dataset column)Error if columns exists
Error if columns exists
update-columnclj
(update-column dataset col-name update-fn)Update a column returning a new dataset. update-fn is a column->column transformation. Error if column does not exist.
Update a column returning a new dataset. update-fn is a column->column transformation. Error if column does not exist.
add-or-update-columnclj
(add-or-update-column dataset col-name col-data)If column exists, replace. Else append new column.
If column exists, replace. Else append new column.
maybe-columnclj
(maybe-column dataset column-name)Return either column if exists or nil.
Return either column if exists or nil.
columnsclj
(columns dataset)set-metadataclj
(set-metadata dataset meta-map)dataset-nameclj
(dataset-name dataset)set-dataset-nameclj
(set-dataset-name dataset name)from-prototypeclj
(from-prototype dataset table-name column-seq)Create a new dataset that is the same type as this one but with a potentially different table name and column sequence. Take care that the columns are all of the correct type.
Create a new dataset that is the same type as this one but with a potentially different table name and column sequence. Take care that the columns are all of the correct type.
select-columns-by-indexclj
(select-columns-by-index dataset num-seq)Select a subset of columns by index.
Select a subset of columns by index.
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