Description

VectorInteraction is a Transformer which takes vector or double-valued columns, and generates a single vector column that contains the product of all combinations of one value from each input column.

Parameters

Name Description Type Required？ Default Value
selectedCols Names of the columns used for processing String[] ✓
outputCol Name of the output column String ✓
reservedCols Names of the columns to be retained in the output table String[] null

Script Example

Script

  1. data = np.array([["$8$1:3,2:4,4:7", "$8$1:3,2:4,4:7"],\
  2.     ["$8$0:3,5:5", "$8$1:2,2:4,4:7"],\
  3.     ["$8$2:4,4:5", "$8$1:3,2:3,4:7"]])
  4. df = pd.DataFrame({"vec" : data[:,0], "id" : data[:,1]})
  5. data = dataframeToOperator(df, schemaStr="vec1 string, vec2 string",op_type="batch")
  6. vecInter = VectorInteractionBatchOp().setSelectedCols(["vec1","vec2"]).setOutputCol("vec_product")
  7. vecInter.linkFrom(data).collectToDataframe()

Result

vec1 vec2 vec_product
$8$1:3,2:4,4:7 $8$1:3,2:4,4:7 $64$9:9.0 10:12.0 12:21.0 17:12.0 18:16.0 20:28.0 33:21.0 34:28.0 36:49.0
$8$0:3,5:5 $8$1:2,2:4,4:7 $64$8:6.0 13:10.0 16:12.0 21:20.0 32:21.0 37:35.0
$8$2:4,4:5 $8$1:3,2:3,4:7 $64$10:12.0 12:15.0 18:12.0 20:15.0 34:28.0 36:35.0