If x is not a Python int object, it has to define an index() method that. Val evaluator = new RegressionEvaluator() The argument may be an integer, a floating point number, or an object. Evaluate the model by computing the RMSE on the test data If there are no extra arguments at the end, it is an empty Array for. Build the recommendation model using ALS on the training data During a function or method call, it receives an Array with all remaining arguments. Val Array(training, test) = ratings.randomSplit(Array(0.8, 0.2)) Val ratings = ("hdfs://masters/test/movielens.txt") Rating(fields(0).toInt, fields(1).toInt, fields(2).toFloat)
Val sparkConf = new SparkConf().setAppName("ALS with ML Pipeline")Ĭase class Rating(userId: Int, movieId: Int, rating: Float) With map() functions, its not only easier, but its also much more flexible. tProperty("", "E:\\Program Files\\hadoop-2.7.0") list(map(func, iterables)) The number of arguments to func must be. Primitive types (Int, String, etc) and Product types (case classes) are supported by importing spark.implicits._ Support for serializing other types will be added in future releases.Įrror:(36, 11) not enough arguments for method map: (implicit evidence$7: .Encoder).Dataset. I think you'll need to give a more specific type to it, for example by creating a sealed trait with subtypes that wrap your String and MapString, String, and then give upickle a MapString, YourSealedTreait instead of MapString, Object. Related Question Scala - Not enough arguments for method count not enough arguments for method toArray scala map in a method argument can not add key-value Scala: not enough arguments for constructor DictionaryLemmatizer Why does scala map parameters of java-defined methods to scala.
#Not enough arguments for method map how to#
using Toybox.WatchUi using Toybox.Application using Toybox. upickle does not know how to serialize Object. The bits in bold are where the errors complain about when the sim runs but i’m not sure what to do to fix this, any help is much appreciated. 在参考spark官网编写ALS例子时报错： Error:(36, 11) Unable to find encoder for type stored in a Dataset. getInitialView() at C:\Users\Me\eclipse-workspace\FileLocations\Map Widget\source\MapWidgetApp.mc:31 0x100000ab. Unable to find encoder for type stored in a Dataset.
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