A personal diary of DataFrame munging over the years.
Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)
alicia aliciatb
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| import urllib3 | |
| from urlparse import urlparse | |
| import os | |
| import json | |
| from urllib import urlencode | |
| from time import sleep | |
| import pprint | |
| import argparse | |
| import sys |
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| # Download Spark 1.4 from http://spark.apache.org/downloads.html | |
| # | |
| # Download the nyc flights dataset as a CSV from https://s3-us-west-2.amazonaws.com/sparkr-data/nycflights13.csv | |
| # Launch SparkR using | |
| # ./bin/sparkR --packages com.databricks:spark-csv_2.10:1.0.3 | |
| # The SparkSQL context should already be created for you as sqlContext | |
| sqlContext | |
| # Java ref type org.apache.spark.sql.SQLContext id 1 |
