/Python/Create spark dataframe from pandas

Create spark dataframe from pandas

Create spark dataframe in python

spark.createDataFrame(["10","11","13"], "string").toDF("age")

Source: stackoverflow.com

Dataframe pandas to spark

from pyspark.sql import SparkSession
#Create PySpark SparkSession
spark = SparkSession.builder \
    .master("local[1]") \
    .appName("SparkByExamples.com") \
    .getOrCreate()
#Create PySpark DataFrame from Pandas
sparkDF=spark.createDataFrame(pandasDF) 
sparkDF.printSchema()
sparkDF.show()

#Outputs below schema & DataFrame

root
 |-- Name: string (nullable = true)
 |-- Age: long (nullable = true)

+------+---+
|  Name|Age|
+------+---+
| Scott| 50|
|  Jeff| 45|
|Thomas| 54|
|   Ann| 34|
+------+---+

Source: sparkbyexamples.com

Create spark dataframe from pandas

import numpy as np
import pandas as pd

# Enable Arrow-based columnar data transfers
spark.conf.set("spark.sql.execution.arrow.enabled", "true")

# Generate a pandas DataFrame
pdf = pd.DataFrame(np.random.rand(100, 3))

# Create a Spark DataFrame from a pandas DataFrame using Arrow
df = spark.createDataFrame(pdf)

Similar codes

13 votes132 views5 answers
How to find largest number in list python without max
Python
0 vote129 views9 answers
Django recapcha
Python
3 votes143 views1 answer
Python csv reader set delimiter
Python
0 vote166 views1 answer
Add url parameter in anchor django template
Python Django
-1 vote142 views3 answers
Blockchain.py
Python
1 vote153 views2 answers
Load data python
Python
21 votes100 views16 answers
How to convert pandas price column to integer
Python
22 votes167 views6 answers
String palindrome in python
Python
3 votes140 views1 answer
Width and height of pil image
Python
4 votes154 views3 answers
AttributeError: module 'tensorflow._api.v2.train' has no attribute 'GradientDescentOptimizer' site:stackoverflow.com
Python