dnlbrky

top accounts reputation activity subscriptions

Replace empty strings with None/null values in DataFrame

python apache-spark dataframes apache-spark-sql pyspark asked Oct 22, 2015 at 18:14

stackoverflow.com

33 votes

Filter S3 list-objects results to find a key matching a pattern

amazon-s3 pattern-matching aws-cli jmespath asked Dec 3, 2014 at 15:04

stackoverflow.com

22 votes

Update subset of data.table based on join

r join data.table subset assignment-operator asked Feb 6, 2013 at 3:20

stackoverflow.com

17 votes

Create nested data.tables by collapsing rows into new data.tables

r nested data.table asked Aug 21, 2014 at 16:08

stackoverflow.com

14 votes

Regression and summary statistics by group within a data.table

r list grouping data.table regression asked Oct 22, 2013 at 16:45

stackoverflow.com

8 votes

Using strptime %z with special timezone format

r timezone strptime string-to-datetime asked Feb 22, 2013 at 19:53

stackoverflow.com

7 votes

data.table assignment involving factors

r data.table updates assignment-operator r-factor asked Jul 9, 2013 at 1:37

stackoverflow.com

7 votes

Multiple joins/merges with data.tables

r join merge data.table multiple-tables asked Jan 2, 2013 at 17:23

stackoverflow.com

7 votes

Following "next" link with relative paths using rvest

html r web-scraping rvest asked Jan 7, 2015 at 4:07

stackoverflow.com

Top Answers

Renaming columns for PySpark DataFrame aggregates

stackoverflow.com

Convert Named Character Vector to data.frame

stackoverflow.com

Filter S3 list-objects results to find a key matching a pattern

stackoverflow.com

How to do cross join in R?

stackoverflow.com

Renaming Objects in RStudio context sensitive within entire Project

stackoverflow.com

How to overwrite the output directory in spark

stackoverflow.com

How do I get a SQL row_number equivalent for a Spark RDD?

stackoverflow.com

What's the R equivalent of SQL's LIKE 'description%' statement?

stackoverflow.com

paste two data.table columns

stackoverflow.com

Use a value from the previous row in an R data.table calculation

stackoverflow.com

Plex Media Server: Won't find media External Hard Drive

askubuntu.com

Spark specify multiple column conditions for dataframe join

stackoverflow.com

Create nested data.tables by collapsing rows into new data.tables

stackoverflow.com

How can I change column types in Spark SQL's DataFrame?

stackoverflow.com

Using R to download zipped data file, extract, and import data

stackoverflow.com

data.table merge based on date ranges

stackoverflow.com

EC2: Waiting until a new instance is in running state

stackoverflow.com

Any way to force fread() of data.table not to stop on empty lines?

stackoverflow.com

Filtering out duplicated/non-unique rows in data.table

stackoverflow.com

How to read a nested collection in Spark

stackoverflow.com

R - equivalent of pip freeze (how to install all R dependencies from a file listing packages names and versions)

stackoverflow.com

ERROR: Could not build wheels for pymssql, which is required to install pyproject.toml-based projects

stackoverflow.com

R idiom for switch/case

stackoverflow.com

Creating a Prompt/Answer system to input data into R

stackoverflow.com

Using strptime %z with special timezone format

stackoverflow.com

Internal links in rmarkdown don't work

stackoverflow.com

Getting app run id for a Spark job

stackoverflow.com