lib/mining: simplify if-else condition

2 files changed, 6 insertions, 10 deletions

diff --git a/lib/mining/cmd/crf/main.go b/lib/mining/cmd/crf/main.go
index c460175c..b6270be9 100644
--- a/lib/mining/cmd/crf/main.go
+++ b/lib/mining/cmd/crf/main.go
@@ -195,12 +195,10 @@ func main() {
 	if o.trainCfg != "" {
 		// (1.1)
 		crforest = train(&o)
-	} else {
 		// (1.2)
-		if len(flag.Args()) == 0 {
-			usage()
-			os.Exit(1)
-		}
+	} else if len(flag.Args()) == 0 {
+		usage()
+		os.Exit(1)
 	}
 
 	// (2)
diff --git a/lib/mining/cmd/rf/main.go b/lib/mining/cmd/rf/main.go
index 4a849a61..cf43f34b 100644
--- a/lib/mining/cmd/rf/main.go
+++ b/lib/mining/cmd/rf/main.go
@@ -180,12 +180,10 @@ func main() {
 	if opts.trainCfg != "" {
 		// (1.1)
 		forest = train(&opts)
-	} else {
 		// (1.2)
-		if len(flag.Args()) == 0 {
-			usage()
-			os.Exit(1)
-		}
+	} else if len(flag.Args()) == 0 {
+		usage()
+		os.Exit(1)
 	}
 
 	// (2)