Do not auto-group columns with suggested purpose = 'Ignore' (dotnet#273)

daholste · web-flow · commit 2ea089e7547d · 2019-03-07T21:26:24.000-08:00
diff --git a/src/Microsoft.ML.Auto/ColumnInference/ColumnGroupingInference.cs b/src/Microsoft.ML.Auto/ColumnInference/ColumnGroupingInference.cs
@@ -83,7 +83,9 @@ into g
 
         private static int GetPurposeGroupId(int columnIndex, ColumnPurpose purpose)
         {
-            if (purpose == ColumnPurpose.CategoricalFeature || purpose == ColumnPurpose.TextFeature)
+            if (purpose == ColumnPurpose.CategoricalFeature || 
+                purpose == ColumnPurpose.TextFeature ||
+                purpose == ColumnPurpose.Ignore)
                 return columnIndex;
             return 0;
         }

Original file line number	Diff line number	Diff line change
`@@ -83,7 +83,9 @@ into g`
`83`	`83`
`84`	`84`	`private static int GetPurposeGroupId(int columnIndex, ColumnPurpose purpose)`
`85`	`85`	`{`
`86`		`- if (purpose == ColumnPurpose.CategoricalFeature \|\| purpose == ColumnPurpose.TextFeature)`
	`86`	`+ if (purpose == ColumnPurpose.CategoricalFeature \|\|`
	`87`	`+ purpose == ColumnPurpose.TextFeature \|\|`
	`88`	`+ purpose == ColumnPurpose.Ignore)`
`87`	`89`	`return columnIndex;`
`88`	`90`	`return 0;`
`89`	`91`	`}`