SQL functions for encoding categorical variables to numerical values. More...
Functions | |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top, varchar value_to_drop, boolean encode_null, varchar output_type, boolean output_dictionary, varchar distributed_by) |
Encode categorical columns using either one-hot encoding or dummy coding. More... | |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top, varchar value_to_drop, boolean encode_null, varchar output_type, boolean output_dictionary) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top, varchar value_to_drop, boolean encode_null, varchar output_type) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top, varchar value_to_drop, boolean encode_null) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top, varchar value_to_drop) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id, varchar top) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude, varchar row_id) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols, varchar categorical_cols_to_exclude) |
void | encode_categorical_variables (varchar source_table, varchar output_table, varchar categorical_cols) |
varchar | encode_categorical_variables (varchar message) |
varchar | encode_categorical_variables () |
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void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top, | ||
varchar | value_to_drop, | ||
boolean | encode_null, | ||
varchar | output_type, | ||
boolean | output_dictionary, | ||
varchar | distributed_by | ||
) |
source_table | Name of table containing categorical variable |
output_table | Name of table to output dummy variables |
categorical_cols | Comma-separated list of column names to dummy code (can be '*') |
categorical_cols_to_exclude | Comma-separated list of column names to exclude (if categorical_cols = '*') |
row_id | Columns from source table to index output table |
top | Parameter to include only top values of a categorical variable |
value_to_drop | Parameter to set reference column in dummy coding |
encode_null | Boolean to determine the behavior for rows with NULL value |
output_type | Parameter to set output data type: 'column', 'array' or 'svec' |
output_dictionary | Boolean to simplify column naming and with a separate mapping table to actual values |
distributed_by | Comma-separated list of column names to use for distribution of output |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top, | ||
varchar | value_to_drop, | ||
boolean | encode_null, | ||
varchar | output_type, | ||
boolean | output_dictionary | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top, | ||
varchar | value_to_drop, | ||
boolean | encode_null, | ||
varchar | output_type | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top, | ||
varchar | value_to_drop, | ||
boolean | encode_null | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top, | ||
varchar | value_to_drop | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id, | ||
varchar | top | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude, | ||
varchar | row_id | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols, | ||
varchar | categorical_cols_to_exclude | ||
) |
void encode_categorical_variables | ( | varchar | source_table, |
varchar | output_table, | ||
varchar | categorical_cols | ||
) |
varchar encode_categorical_variables | ( | varchar | message | ) |
varchar encode_categorical_variables | ( | ) |