Fix runtime exception in Prior trainer sample and update the sample output in comments. (#3295)

codemzs · web-flow · commit 41ba426df266 · 2019-04-11T15:53:11.000-07:00
diff --git a/docs/samples/Microsoft.ML.Samples/Dynamic/Trainers/BinaryClassification/PriorTrainerSample.cs b/docs/samples/Microsoft.ML.Samples/Dynamic/Trainers/BinaryClassification/PriorTrainerSample.cs
@@ -26,7 +26,7 @@ public static void Example()
             var loader = mlContext.Data.CreateTextLoader(
                 columns: new[]
                     {
-                        new TextLoader.Column("Sentiment", DataKind.Single, 0),
+                        new TextLoader.Column("Sentiment", DataKind.Boolean, 0),
                         new TextLoader.Column("SentimentText", DataKind.String, 1)
                     },
                 hasHeader: true
@@ -63,7 +63,7 @@ public static void Example()
             //  Positive Precision: 0.50
             //  Positive Recall: 1.00
             //  LogLoss: 1.05
-            //  LogLossReduction: -4.89
+            //  LogLossReduction: -0.05
             //  Entropy: 1.00
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@ public static void Example()`
`26`	`26`	`var loader = mlContext.Data.CreateTextLoader(`
`27`	`27`	`columns: new[]`
`28`	`28`	`{`
`29`		`- new TextLoader.Column("Sentiment", DataKind.Single, 0),`
	`29`	`+ new TextLoader.Column("Sentiment", DataKind.Boolean, 0),`
`30`	`30`	`new TextLoader.Column("SentimentText", DataKind.String, 1)`
`31`	`31`	`},`
`32`	`32`	`hasHeader: true`
`@@ -63,7 +63,7 @@ public static void Example()`
`63`	`63`	`// Positive Precision: 0.50`
`64`	`64`	`// Positive Recall: 1.00`
`65`	`65`	`// LogLoss: 1.05`
`66`		`- // LogLossReduction: -4.89`
	`66`	`+ // LogLossReduction: -0.05`
`67`	`67`	`// Entropy: 1.00`
`68`	`68`	`}`
`69`	`69`	`}`