make computation of mean value optional

pdb-plotting/src/main/java/org/lucares/pdb/plot/api/AggreateInternal.java

@@ -0,0 +1,5 @@
+package org.lucares.pdb.plot.api;
+
+public enum AggreateInternal {
+NONE, MEAN
+}

pdb-plotting/src/main/java/org/lucares/pdb/plot/api/PlotSettings.java

@@ -32,6 +32,8 @@ public class PlotSettings {
 
 	private AxisScale yAxisScale;
 
+	private AggreateInternal aggregate;
+
 	public String getQuery() {
 		return query;
 	}
@@ -156,6 +158,14 @@ public class PlotSettings {
 	public String toString() {
 		return "PlotSettings [query=" + query + ", height=" + height + ", width=" + width + ", groupBy=" + groupBy
 				+ ", limitBy=" + limitBy + ", limit=" + limit + ", dateFrom=" + dateFrom + ", dateRange=" + dateRange
-				+ ", axisScale=" + yAxisScale + "]";
+				+ ", axisScale=" + yAxisScale + ", aggregate="+aggregate+"]";
+	}
+
+	public void setAggregate(AggreateInternal aggregate) {
+		this.aggregate = aggregate;
+	}
+	
+	public AggreateInternal getAggregate() {
+		return aggregate;
 	}
 }

pdb-plotting/src/main/java/org/lucares/recommind/logs/GnuplotFileGenerator.java

@@ -2,6 +2,7 @@ package org.lucares.recommind.logs;
 
 import java.util.Collection;
 
+import org.lucares.pdb.plot.api.AggreateInternal;
 import org.lucares.pdb.plot.api.AxisScale;
 
 public class GnuplotFileGenerator {
@@ -13,7 +14,20 @@ public class GnuplotFileGenerator {
 		appendfln(result, "set terminal %s noenhanced size %d,%d", settings.getTerminal(), settings.getWidth(),
 				settings.getHeight());
 
+		
+		
 		appendfln(result, "set datafile separator \"%s\"", settings.getDatafileSeparator());
+		
+		int count = 1;
+		if (settings.getAggregate() != AggreateInternal.NONE)
+		{
+			for (final DataSeries dataSerie : dataSeries) {
+				
+				appendfln(result, "stats '%s' using 2 prefix \"A%d\"", dataSerie.getDataFile(),count);
+				count++;
+			}
+		}
+		
 		appendfln(result, "set timefmt '%s'", settings.getTimefmt());
 
 		appendfln(result, "set xdata time");
@@ -21,7 +35,8 @@ public class GnuplotFileGenerator {
 		appendfln(result, "set xlabel \"%s\"", settings.getXlabel());
 		appendfln(result, "set xtics rotate by %d", settings.getRotateXAxisLabel());
 		appendfln(result, "set xrange [\"%s\":\"%s\"]", settings.getDateFrom(), settings.getDateTo());
-
+		appendfln(result, "set yrange [\"1\":]");
+		
 		appendfln(result, "set ylabel \"%s\"", settings.getYlabel());
 		if (settings.getYAxisScale() == AxisScale.LOG10) {
 			appendfln(result, "set logscale y");
@@ -29,12 +44,19 @@ public class GnuplotFileGenerator {
 			appendfln(result, "set logscale y 2");
 		}
 
+		appendfln(result, "set grid");
 		appendfln(result, "set output \"%s\"", settings.getOutput().toAbsolutePath().toString().replace("\\", "/"));
 		appendf(result, "plot ");
-
+		
+		count = 1;
 		for (final DataSeries dataSerie : dataSeries) {
 			appendfln(result, "'%s' using 1:2 title '%s' with points, \\", dataSerie.getDataFile(),
 					dataSerie.getTitle());
+			if (settings.getAggregate() == AggreateInternal.MEAN) {
+				appendfln(result, "A%d_mean title '%s Mean', \\", count, dataSerie.getTitle(),
+						dataSerie.getTitle());
+			}
+			count++;
 		}
 
 		return result.toString();

pdb-plotting/src/main/java/org/lucares/recommind/logs/GnuplotSettings.java

@@ -2,6 +2,7 @@ package org.lucares.recommind.logs;
 
 import java.nio.file.Path;
 
+import org.lucares.pdb.plot.api.AggreateInternal;
 import org.lucares.pdb.plot.api.AxisScale;
 
 public class GnuplotSettings {
@@ -30,6 +31,7 @@ public class GnuplotSettings {
 	private AxisScale yAxisScale;
 	private String dateFrom;
 	private String dateTo;
+	private AggreateInternal aggregate;
 
 	public GnuplotSettings(final Path output) {
 		this.output = output;
@@ -135,6 +137,14 @@ public class GnuplotSettings {
 		return dateTo;
 	}
 
+	public void setAggregate(AggreateInternal aggregate) {
+		this.aggregate = aggregate;
+	}
+	
+	public AggreateInternal getAggregate() {
+		return aggregate;
+	}
+
 	// plot 'sample.txt' using 1:2 title 'Bytes' with linespoints 2
 
 }

pdb-plotting/src/main/java/org/lucares/recommind/logs/Plotter.java

@@ -116,6 +116,7 @@ public class Plotter {
 			defineXAxis(gnuplotSettings, plotSettings.dateFrom(), plotSettings.dateTo());
 
 			gnuplotSettings.setYAxisScale(plotSettings.getYAxisScale());
+			gnuplotSettings.setAggregate(plotSettings.getAggregate());
 			gnuplot.plot(gnuplotSettings, dataSeries);
 
 			return new PlotResult(outputFile.getFileName(), dataSeries);