go: appease the linters

* also, build the correct pkg in pre-commit

.pre-commit-config.yaml

@@ -46,9 +46,9 @@ repos:
         pass_filenames: false
         files: "flake.(nix|lock)$"
         language: system
-      - id: nix-build-go-proj
+      - id: nix-build-go-ak0da
-        name: nix build go proj
+        name: nix build go ak0da
-        entry: nix build .#proj
+        entry: nix build .#ak0da
         pass_filenames: false
         # trigger this hook on changes to any of nix (also flake.lock) files
         # and go's mod or sum files

main.go

@@ -48,19 +48,20 @@ func main() {
 		}
 	}
 
-	fmt.Printf("\tAverage anomaly score for normal data: %f\n",
+	fmt.Fprintf(os.Stderr, "\tAverage anomaly score for normal data: %f\n",
 		avg/float64(randomDataSize),
 	)
-	fmt.Printf("\tMinimum anomaly score for normal data: %f\n",
+	fmt.Fprintf(os.Stderr, "\tMinimum anomaly score for normal data: %f\n",
 		minScore,
 	)
 
 	// these values should be much higher as comapred to the scores for normal
 	// data.
-	fmt.Println("\tAnomaly scores for outliers are:")
+	fmt.Fprintln(os.Stderr, "\tAnomaly scores for outliers are:")
+
 	for i := randomDataSize; i < (randomDataSize + outliers); i++ {
-		fmt.Print("\t")
+		fmt.Fprint(os.Stderr, "\t")
-		fmt.Println(predictions[i])
+		fmt.Fprintln(os.Stderr, predictions[i])
 	}
 
 	log.Println("we're done")
@@ -97,10 +98,12 @@ func loadData() (*base.DenseInstances, error) {
 // a file in CSV format.
 func prepData(path string) error {
 	log.Println("generating data")
-	data := genData(true, randomDataSize, -1.0, 1.0)
-	log.Println("generating data - done")
 
+	data := genData(true, randomDataSize, -1.0, 1.0)
+
+	log.Println("generating data - done")
 	log.Printf("saving data to file at '%s'\n", path)
+
 	f, err := os.Create(path)
 	if err != nil {
 		log.Printf("could not save data to file at '%s'\n", path)