samplewithsizebatchop.md

Description

Sample with given size with or without replacement.

Parameters

Name	Description	Type	Required？	Default Value
size	sampling size	Integer	✓
withReplacement	Indicates whether to enable sampling with replacement, default is without replcement	Boolean		false

Script Example

Script

data = data = np.array([
       ["0,0,0"],
       ["0.1,0.1,0.1"],
       ["0.2,0.2,0.2"],
       ["9,9,9"],
       ["9.1,9.1,9.1"],
       ["9.2,9.2,9.2"]
])
    
df = pd.DataFrame({"Y": data[:, 0]})

# batch source 
inOp = dataframeToOperator(df, schemaStr='Y string', op_type='batch')

sampleOp = SampleWithSizeBatchOp()\
        .setSize(2)\
        .setWithReplacement(False)

inOp.link(sampleOp).print()

Result

Y
0,0,0
0.2,0.2,0.2