diff options
Diffstat (limited to 'core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala')
| -rwxr-xr-x | core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala b/core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala index b378190..cc33a26 100755 --- a/core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala +++ b/core/source/main/scala/com/rockymadden/stringmetric/similarity/OverlapMetric.scala @@ -7,10 +7,8 @@ final case class OverlapMetric(n: Int) extends StringMetric[Double] { import com.rockymadden.stringmetric.tokenize.NGramTokenizer import scala.math - override def compare(a: Array[Char], b: Array[Char]): Option[Double] = { - if (n <= 0) return None - - if (a.length < n || b.length < n) None // Because length is less than n, it is not possible to compare. + override def compare(a: Array[Char], b: Array[Char]): Option[Double] = + if (n <= 0 || a.length < n || b.length < n) None // Because length is less than n, it is not possible to compare. else if (a.sameElements(b)) Some(1d) else NGramTokenizer(n).tokenize(a).flatMap { ca1bg => NGramTokenizer(n).tokenize(b).map { ca2bg => @@ -19,7 +17,6 @@ final case class OverlapMetric(n: Int) extends StringMetric[Double] { ms.toDouble / math.min(ca1bg.length, ca2bg.length) } } - } override def compare(a: String, b: String): Option[Double] = compare(a.toCharArray, b.toCharArray) |