sparklyr is an alternative R interface for Apache Spark
sparklyr provides an alternative to sparkr r interface for apache-spark built on top of sparkapi.
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Questions tagged [sparklyr]
784 questions
-2
votes
1 answer
Multiple date formats in tbl_spark in R. I want to change all the date formats to one format (dd-mm-yyyy)
library(sparklyr)
sc <- spark_connect(master = "local")
date1 <- data.frame(DATE1 =c ("12-01-2020","2020-12-24",
"14-May-2020","19/3/2020 14:32:15",
"2020-09-08","05/05/2020"),
NAME1 = c("A","B","C","D","E","F"))
tbl <- copy_to(sc,…
Let's Code
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votes
1 answer
How to get last N rows of each group in sparklyr?
I have a spark data frame with columns id, category, timestamp, price columns. I want to group the data by customer id, category sort by timestamp, and get last n rows in each group.
I tried the below code but it is retuning just 3 rows for overall…
Yashwanth
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votes
1 answer
How to get hours as columns in from-to timestamps (in sparklyr & R)
I am trying to calculate the time spent (in minutes) by users for each hour . An example is given below. I want to replicate this in sparklyr as well.
df <- data.frame(user_id = c("x", "y", "z", "a"),
start_time = c("2019-04-28…
Yogesh Kumar
- 609
- 6
- 22
-2
votes
1 answer
Why is creating CSV file in Sparklyr R shows an Error?
Introdution
I have written following R code by referring Link-1. Here, Sparklyr package is used in R programming to read huge data from JSON file. But, while creating CSV file, it has shown the error.
R code
sc <- spark_connect(master = "local",…
Shree
- 203
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