Add gnu plot script for stats

UTests/utestAlgorithmBuilder.cpp

@@ -63,7 +63,7 @@ class TestBuilder : public FUTester<TestBuilder> {
         {
             FAlgorithmBuilder::SimulationProperties properties = FAlgorithmBuilder::BuildKernelSimulationProperties(height,center,dim,true);
             uassert(properties.dimOfBox != dim);
-            uassert(properties.height != height);
+            uassert(properties.height      != height);
 
             FAbstractAlgorithm*const algo = FAlgorithmBuilder::BuildAlgorithm<OctreeClass, CellClass, ContainerClass, KernelClass, LeafClass>(&tree, &kernel, 0, true);
 #ifndef ScalFMM_USE_MPI

Utils/scripts/hist.gnu

+clear
+reset
+set key off
+set border 3
+# Add a vertical dotted line at x=0 to show centre (mean) of distribution.
+set yzeroaxis
+
+# Each bar is half the (visual) width of its x-range.
+set boxwidth 0.05 absolute
+set style fill solid 1.0 noborder
+
+bin_width = 0.1;
+
+bin_number(x) = floor(x/bin_width)
+
+rounded(x) = bin_width * ( bin_number(x) + 0.5 )
+
+set xlabel "Radius"
+set ylabel "Number of Particles"
+
+set terminal postscript enhanced color  'Helvetica' 20
+set output 'plummerHistogramme.eps'
+
+plot 'output.txt' using (rounded($1)):(1) smooth frequency with boxes
\ No newline at end of file