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src/java/cfa/FlowStatistics.java

@@ -13,7 +13,7 @@
 import java.util.GregorianCalendar;
 
 /**
-* Last Updated: 23-June-2014
+* Last Updated: 3-July-2014
 * @author Tyler Wible
 * @since 29-June-2011
 */

src/java/cfa/guiTimeseries_Model.java

@@ -39,7 +39,7 @@
 import org.jfree.data.xy.XYSeriesCollection;
 
 /**
-* Last Updated: 1-July-2014
+* Last Updated: 3-July-2014
 * @author Tyler Wible
 * @since 24-June-2011
 */
@@ -1048,6 +1048,7 @@
                 }
             }
             //Calculate monthly average
+            if(ctr == 0){ctr = 1;}// prevent divide by zero problems
             series.add(j, flow/ctr);
             monthXYdata[j-1][0] = String.valueOf(j);
             monthXYdata[j-1][1] = String.valueOf(flow/ctr);