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Specify categorical variables in metadata (#120)
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core/src/test/scala/com/salesforce/op/stages/impl/feature/AttributeAsserts.scala
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/* | ||
* Copyright (c) 2017, Salesforce.com, Inc. | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* * Redistributions of source code must retain the above copyright notice, this | ||
* list of conditions and the following disclaimer. | ||
* | ||
* * Redistributions in binary form must reproduce the above copyright notice, | ||
* this list of conditions and the following disclaimer in the documentation | ||
* and/or other materials provided with the distribution. | ||
* | ||
* * Neither the name of the copyright holder nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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package com.salesforce.op.stages.impl.feature | ||
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import org.apache.spark.ml.attribute.AttributeGroup | ||
import org.apache.spark.sql.types.StructField | ||
import org.scalatest.{Assertion, Matchers} | ||
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trait AttributeAsserts { | ||
self: Matchers => | ||
/** | ||
* Assert if attributes are nominal or not | ||
* | ||
* @param schema | ||
* @param expectedNominal Expected array of booleans. True if the field is nominal, false if not. | ||
*/ | ||
final def assertNominal(schema: StructField, expectedNominal: Array[Boolean]): Assertion = { | ||
val attributes = AttributeGroup.fromStructField(schema).attributes | ||
attributes.map(_.map(_.isNominal).toSeq) shouldBe Some(expectedNominal.toSeq) | ||
} | ||
} |
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