Recent questions tagged scala

0 votes

1 answer 864 views

scala - Spark - How to create a sparse matrix from item ratings

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 892 views

scala - How to use spark to generate huge amount of random integers?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 919 views

scala - How to print elements of particular RDD partition in Spark?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 937 views

scala - How to use from_json with Kafka connect 0.10 and Spark Structured Streaming?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 1.6k views

scala - How to merge two columns of a `Dataframe` in Spark into one 2-Tuple?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 815 views

scala - Why is this cyclic reference with a type projection illegal?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 1.1k views

scala - Upload zip file using --archives option of spark-submit on yarn

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 749 views

scala - Sequencing an HList

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 1.2k views

scala - Why is my object not a member of package <root> if it's in a separate source file?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 840 views

scala - Remove Temporary Tables from Apache SQL Spark

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 844 views

scala - How to add elements to Source dynamically?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 1.0k views

scala - Adaptation of argument list by inserting () has been deprecated

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 795 views

scala - Multiple packages definition

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 744 views

scala - What's the difference between `::` and `+:` for prepending to a list)?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 729 views

scala - How to map variable names to features after pipeline

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 760 views

scala - Combining Futures, Eithers and Options in for comprehensions

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 684 views

scala - How to force interpreter show complete stack trace?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 1.2k views

scala - SBT: Exclude class from Jar

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 694 views

scala - How are co- and contra-variance used in designing business applications?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 913 views

scala - Is there a way to add extra metadata for Spark dataframes?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 758 views

scala - Ambiguous Reference to overloaded definition - One vs Two Parameters

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 851 views

scala - Add a compile time only dependency in sbt

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 881 views

scala - Why do I get a "missing parameter for expanded function" in one case and not the other?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 841 views

scala - Multiple executable jar files with different external dependencies from a single project with sbt-assembly

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 835 views

scala - Why doesn't Option have a fold method?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 963 views

scala - View SQL query in Slick

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 896 views

scala - Get the size/length of an array column

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 816 views

scala - How to create hive table from Spark data frame, using its schema?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 785 views

scala - Joining two DataFrames in Spark SQL and selecting columns of only one

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 713 views

scala - SBT including the version number in a program

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 817 views

scala - Why Future.sequence executes my futures in parallel rather than in series?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 760 views

scala - Unable to use for comprehension to map over List within Future

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 739 views

scala - Noise free JSON format for sealed traits with Play 2.2 library

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 711 views

scala - Checking if values in List is part of String

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1 answer 646 views

scala - How does this recursive List flattening work?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags