Pyspark MLib

Pyspark MLib

University

20 Qs

quiz-placeholder

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Pyspark MLib

Pyspark MLib

Assessment

Quiz

Computers

University

Hard

Created by

FRIKA NUGROHO

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Untuk memuat dataset CSV ke dalam DataFrame di Spark, metode mana yang digunakan?

spark.read.file()
spark.load.csv()
spark.read.csv()
spark.import.csv()

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Lengkapi kode pada titik-titik untuk menggabungkan atribut menjadi satu vektor!

assembler = VectorAssembler(.........=selected_features, .........="featuress")

assembler = VectorAssembler(inputs=selected_features, outputs='features')
assembler = VectorAssembler(inputCols=selected_features, outputCol=features_col)
assembler = VectorAssembler(inputCols=features, outputCol=selected_features)
assembler = VectorAssembler(inputCols=selected_features, outputCol="features")

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Lengkapi kode berikut untuk melakukan pembagian dataset menjadi data latih dan data uji, dimana data uji diberikan jumlah subset 20% !

train_data, test_data = data.randomSplit(.........)

train_data, test_data = data.randomSplit([0.6, 0.4])

train_data, test_data = data.randomSplit([0.8, 0.2])

train_data, test_data = data.randomSplit([0.7, 0.3])

train_data, test_data = data.randomSplit([0.9, 0.1])

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fungsi mana yang digunakan untuk menghitung jumlah baris dalam DataFrame di Spark?

df.size()

df.rows()

df.count()

df.length()

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fungsi mana yang digunakan untuk menampilkan skema DataFrame di Spark?

df.schema()

df.displaySchema()

df.printSchema()

df.showSchema()

6.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Lengkapi kode dibawah ini, agar hanya mengambil kolom yang memiliki fitur numerik !

numeric = [t[0] for t in df.dtypes if t[1] == 'int']

numeric_summary = df.select(............).summary()

numeric_summary.show(truncate=False)

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fungsi mana yang digunakan untuk menghapus kolom dari DataFrame di Spark?

df.dropCol()

df.remove()

df.drop()

df.delete()

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