Recent questions tagged scala

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

scala - flatMap with Shapeless yield FlatMapper not found

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

scala - Parametric type + function requires a string as second parameter?

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1.3k views 1 answer

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

scala - How to hide scrollbars in the JavaFX WebView

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1.7k views 1 answer

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

scala - Spark join produces wrong results

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1.8k views 1 answer

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

scala reflection

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

scala - Error when trying to write to hdfs: Server IPC version 9 cannot communicate with client version 4

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1.5k views 1 answer

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

scala - Add additional directory to clean task in SBT build

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1.6k views 1 answer

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

scala - Why can't i define a variable recursively in a code block?

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1.5k views 1 answer

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

scala - Spark DataFrame equivalent to Pandas Dataframe `.iloc()` method?

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2.1k views 1 answer

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

scala - Difference in flattening an Option[List[Int]] in 2.9.1 and 2.10 nightly

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1.2k views 1 answer

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

scala - sbt-assembly : including test classes

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

scala - How to concatenate two streams in Apache Flink

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

scala - Non-integer ids in Spark MLlib ALS

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1.6k views 1 answer

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

scala - How to create encoder for Option type constructor, e.g. Option[Int]?

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1.7k views 1 answer

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

scala - Why can I not flatMap a List[Option] using underscore?

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1.5k views 1 answer

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

scala - Spark Dataset aggregation similar to RDD aggregate(zero)(accum, combiner)

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1.3k views 1 answer

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

scala - Cross-compiling aggregate projects with different crossScalaVersions for subprojects

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1.3k views 1 answer

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

scala - NullPointerException in Spark RDD map when submitted as a spark job

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1.4k views 1 answer

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

scala - Predict Class Probabilities in Spark RandomForestClassifier

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1.4k views 1 answer

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

scala - How to convert List[Double] to Columns?

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1.5k views 1 answer

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

scala - Load Spark data locally Incomplete HDFS URI

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1.4k views 1 answer

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

scala - Gatling - execute scenarios sequentialy

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1.6k views 1 answer

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

scala - Play tests with database: "Too many connections"

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1.6k views 1 answer

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

scala - Can I overload curried methods?

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1.5k views 1 answer

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

scala - Read specific column from Parquet without using Spark

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1.9k views 1 answer

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

scala - Using dynamic Datasource with Tomcat

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1.5k views 1 answer

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

scala - What does Dotty offer to replace type projections?

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1.4k views 1 answer

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

scala - Unresolved Dependencies when building play 2.0 project

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1.5k views 1 answer

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