Add method to store RocCoordinates in CSV file

java-roc.iml

@@ -18,6 +18,12 @@
     <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-params:5.3.1" level="project" />
     <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-engine:5.3.1" level="project" />
     <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-engine:1.3.1" level="project" />
+    <orderEntry type="library" name="Maven: com.opencsv:opencsv:4.1" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.commons:commons-lang3:3.6" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.commons:commons-text:1.1" level="project" />
+    <orderEntry type="library" name="Maven: commons-beanutils:commons-beanutils:1.9.3" level="project" />
+    <orderEntry type="library" name="Maven: commons-logging:commons-logging:1.2" level="project" />
+    <orderEntry type="library" name="Maven: commons-collections:commons-collections:3.2.2" level="project" />
     <orderEntry type="library" name="Maven: com.owlike:genson:1.4" level="project" />
     <orderEntry type="library" name="Maven: info.debatty:java-aggregation:0.4" level="project" />
     <orderEntry type="module-library">

pom.xml

@@ -47,6 +47,13 @@
             <version>5.3.1</version>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>com.opencsv</groupId>
+            <artifactId>opencsv</artifactId>
+            <version>4.1</version>
+        </dependency>
+
         <!-- Only for testing the last version of java-wowa-training -->
         <dependency>
             <groupId>com.owlike</groupId>
@@ -68,7 +75,7 @@
             <systemPath>${project.basedir}/../java-wowa-training/target/java-wowa-training-0.0.4-SNAPSHOT.jar</systemPath>
         </dependency>
     </dependencies>
-    <!-- ________________________________________________________________________________________________________________________>
+    <!-- ________________________________________________________________________________________________________________________-->
     <build>
         <plugins>
             <!-- leave this one first, to be sure we use this recent version -->

src/main/java/be/cylab/java/roc/Utils.java

 package be.cylab.java.roc;
 
+import com.opencsv.CSVWriter;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 
 public class Utils {
@@ -23,4 +29,23 @@ public class Utils {
         }
         return negative_examples;
     }
+
+    public static void storeRocCoordinatesInCSVFile(List<RocCoordinates> elements, String filepath) {
+        File file = new File(filepath);
+        try {
+            FileWriter outputfile = new FileWriter(file);
+
+            CSVWriter writer = new CSVWriter(outputfile);
+            List<String[]> data = new ArrayList<>();
+            for (RocCoordinates element : elements) {
+                String[] el = new String[] { Double.toString(element.getFalseAlarm()),Double.toString(element.getTrueDetection())};
+                data.add(el);
+            }
+            writer.writeAll(data);
+            writer.close();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
 }