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Scala RandBasis类代码示例

本文整理汇总了Scala中breeze.stats.distributions.RandBasis的典型用法代码示例。如果您正苦于以下问题:Scala RandBasis类的具体用法?Scala RandBasis怎么用?Scala RandBasis使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了RandBasis类的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Scala代码示例。

示例1: GrammarUtils

//设置package包名称以及导入依赖的类
package kokellab.utils.grammars

import breeze.stats.distributions.{RandBasis, ThreadLocalRandomGenerator}
import org.apache.commons.math3.random.MersenneTwister
import org.parboiled2.{ErrorFormatter, ParseError, Parser}

object GrammarUtils {

	def randBasis(seed: Int): RandBasis = new RandBasis(new ThreadLocalRandomGenerator(new MersenneTwister(seed)))

	def replaceCommon(expression: String): String = commonReplacements.foldLeft(expression) ((e, s) => e.replaceAllLiterally(s._1, s._2))

	def wrapGrammarException[A](expression: String, parser: Parser, parse: () => A): A = try {
			parse()
		} catch {
			case e: ParseError =>
				val formatted = parser.formatError(e, new ErrorFormatter(showExpected = true, showFrameStartOffset = true, showLine = true, showPosition = true, showTraces = true))
				throw new GrammarException(s"The expression $expression could not be parsed by ${parser.getClass.getSimpleName}",
					Some(formatted), Some(e))
			case e: IllegalArgumentException =>
				throw new GrammarException(s"Error parsing expression $expression by ${parser.getClass.getSimpleName}: ${e.getMessage}", None, Some(e))
		}

	private val commonReplacements = Map(" " -> "", "?" -> "-", "!=" -> "?", "<=" -> "?", ">=" -> "?", "==" -> "=", "~=" -> "?", "!~=" -> "?", "?" -> "Infinity", "infinity" -> "Infinity", "inf" -> "Infinity", "Inf" -> "Infinity")
} 
开发者ID:kokellab,项目名称:kl-common-scala,代码行数:26,代码来源:GrammarUtils.scala


注:本文中的breeze.stats.distributions.RandBasis类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。