本文整理汇总了Scala中breeze.stats.distributions.RandBasis类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?那么恭喜您, 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")
}