diff --git a/ch.psi.fda/src/main/java/ch/psi/fda/ui/visualizer/Visualizer.java b/ch.psi.fda/src/main/java/ch/psi/fda/ui/visualizer/Visualizer.java
index 1490e2f..a050d0b 100644
--- a/ch.psi.fda/src/main/java/ch/psi/fda/ui/visualizer/Visualizer.java
+++ b/ch.psi.fda/src/main/java/ch/psi/fda/ui/visualizer/Visualizer.java
@@ -301,7 +301,7 @@ public class Visualizer {
                 return (double)((Float) value);
             }
             else if(value instanceof Boolean){
-                return (double)(((Boolean) value)?1.0:0.0;
+                return ((Boolean) value)?1.0:0.0;
             }
             return Double.NaN;
         }
@@ -399,7 +399,7 @@ public class Visualizer {
 		this.updateAtEndOfStream = updateAtEndOfStream;
 	}
 
-        public boolean getSubsampling() {
+        public int getSubsampling() {
 		return subsampling;
 	}
 	public void setSubsampling(int factor) {