
Pyspark MLib
Authored by FRIKA NUGROHO
Computers
University

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Untuk memuat dataset CSV ke dalam DataFrame di Spark, metode mana yang digunakan?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Lengkapi kode pada titik-titik untuk menggabungkan atribut menjadi satu vektor!
assembler = VectorAssembler(.........=selected_features, .........="featuress")
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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