Don't use plural if running cx predict on one sample

Author: deliahu

cli/cmd/predict.go

@@ -93,7 +93,11 @@ var predictCmd = &cobra.Command{
 		fmt.Println("\n" + apiName + " was last updated on " + apiStart + "\n")
 
 		if predictResponse.ClassificationPredictions != nil {
-			fmt.Println("Predicted classes:")
+			if len(predictResponse.ClassificationPredictions) == 1 {
+				fmt.Println("Predicted class:")
+			} else {
+				fmt.Println("Predicted classes:")
+			}
 			for _, prediction := range predictResponse.ClassificationPredictions {
 				if prediction.PredictedClassReversed != nil {
 					json, _ := json.Marshal(prediction.PredictedClassReversed)
@@ -104,7 +108,11 @@ var predictCmd = &cobra.Command{
 			}
 		}
 		if predictResponse.RegressionPredictions != nil {
-			fmt.Println("Predicted values:")
+			if len(predictResponse.RegressionPredictions) == 1 {
+				fmt.Println("Predicted value:")
+			} else {
+				fmt.Println("Predicted values:")
+			}
 			for _, prediction := range predictResponse.RegressionPredictions {
 				if prediction.PredictedValueReversed != nil {
 					json, _ := json.Marshal(prediction.PredictedValueReversed)

docs/quick-start.md

@@ -544,7 +544,7 @@ $ cortex predict iris-type irises.json
 
 iris-type was last updated on Tuesday, February 14, 2019 at 2:57pm PST
 
-Predicted classes:
+Predicted class:
 Iris-setosa
 ```