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https://issues.apache.org/jira/browse/MAHOUT-1500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14081123#comment-14081123
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ASF GitHub Bot commented on MAHOUT-1500:
----------------------------------------
Github user dlyubimov commented on a diff in the pull request:
https://github.com/apache/mahout/pull/21#discussion_r15655025
--- Diff:
h2o/src/test/scala/org/apache/mahout/h2obindings/ops/AtASuite.scala ---
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.mahout.h2obindings.ops
+
+import org.scalatest.FunSuite
+import org.apache.mahout.h2obindings.test.DistributedH2OSuite
+import org.apache.mahout.math.scalabindings._
+import org.apache.mahout.math.drm._
+import org.apache.mahout.h2obindings._
+import org.apache.mahout.h2obindings.drm._
+import RLikeOps._
+import RLikeDrmOps._
+import org.apache.mahout.math.drm._
+
+/** Tests for {@link XtX} */
+class AtASuite extends FunSuite with DistributedH2OSuite {
+
+ test("AtA slim") {
+
+ val inCoreA = dense((1, 2), (2, 3))
+ val drmA = drmParallelize(inCoreA)
+
+ val M = drmA.t %*% drmA
+ val inCoreAtA = M.collect
+ println(inCoreAtA)
+
+ val expectedAtA = inCoreA.t %*% inCoreA
+ println(expectedAtA)
+
+ assert(expectedAtA === inCoreAtA)
+
+ }
+
+
--- End diff --
remove extra line
> H2O integration
> ---------------
>
> Key: MAHOUT-1500
> URL: https://issues.apache.org/jira/browse/MAHOUT-1500
> Project: Mahout
> Issue Type: Improvement
> Reporter: Anand Avati
> Fix For: 1.0
>
>
> Provide H2O backend for the Mahout DSL
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