VwArgParser

Parse VW parameter string and place the parameters in a Map where the key is the parameter name and the Map value is the string value for that parameter. If no value follows the parameter name, then the Map value is an empty string. If the parameter name is specified with a value multiple times, then the Map value is an Iterable of the multiple parameter values.

This object is NOT infallible and can probably be broken, however it should work for most if not nearly all the common VW parameter strings. Once can choose to put in parameter names that are not supported in VW. No validation is done here to ensure the parameter is actually supported, so this should be used carefully with some common sense. This object exists to provide convenience for VW parameter parsing and manipulation.

scala> VwArgParser("-f vw.model -d dataset.txt")
res0: Map[String,String] = Map(f -> vw.model, d -> dataset.txt)

scala> VwArgParser("--loss_function logistic -c -k --passes 100")
res2: Map[String,String] = Map(loss_function -> logistic, c -> "", k -> "", passes -> 100)

scala> VwArgParser("-d train.dat --cb 4 -f cb.model  ")
res3: Map[String,String] = Map(d -> train.dat, cb -> 4, f -> cb.model)

scala> VwArgParser("--cache_file cache_train --final_regressor r_temp --passes 3 --readable_model r_te--mp.txt --l1 lambda1")
res4: Map[String,String] = Map(l1 -> lambda1, readable_model -> r_te--mp.txt, passes -> 3, cache_file -> cache_train, final_regressor -> r_temp)

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final def !=(arg0: AnyRef): Boolean

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final def !=(arg0: Any): Boolean

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final def ##(): Int

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final def ==(arg0: AnyRef): Boolean

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final def ==(arg0: Any): Boolean

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def apply(args: Option[String]): Map[String, Any]
def apply(args: String): Map[String, Any]
final def asInstanceOf[T0]: T0

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def clone(): AnyRef

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@throws( ... )
final def eq(arg0: AnyRef): Boolean

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def equals(arg0: Any): Boolean

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def finalize(): Unit

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protected[java.lang]
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@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

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def hashCode(): Int

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final def isInstanceOf[T0]: Boolean

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def main(args: Array[String]): Unit
final def ne(arg0: AnyRef): Boolean

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final def notify(): Unit

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final def notifyAll(): Unit

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def oneArg(args: String): String
final def synchronized[T0](arg0: ⇒ T0): T0

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def toString(): String

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final def wait(): Unit

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final def wait(arg0: Long, arg1: Int): Unit

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final def wait(arg0: Long): Unit

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object VwArgParser

Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

def apply(args: Option[String]): Map[String, Any]

def apply(args: String): Map[String, Any]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def main(args: Array[String]): Unit

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def oneArg(args: String): String

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

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