1 files changed, 16 insertions, 0 deletions
diff --git a/src/main/scala/scalam/collection/DenseVectorBuilder.scala b/src/main/scala/scalam/collection/DenseVectorBuilder.scala
new file mode 100644
index 0000000..84501bd
--- /dev/null
+++ b/src/main/scala/scalam/collection/DenseVectorBuilder.scala
@@ -0,0 +1,16 @@
+package scalam.collection
+
+import scala.collection.mutable.Builder
+import scala.collection.mutable.ArrayBuffer
+import breeze.linalg.DenseVector
+
+class DenseVectorBuilder[Elem: ClassManifest] extends Builder[Elem, DenseVector[Elem]] {
+  private val buffer = new ArrayBuffer[Elem]
+  
+  override def +=(elem: Elem) = {buffer += elem; this}
+  override def clear() = buffer.clear
+  override def result() = {
+   val a = buffer.mapResult(_.toArray).result
+   DenseVector(a)
+  }
+} 
+\ No newline at end of file