Added Eventplot + Reformatting

Author: Christoph Jenzen

Makefile

@@ -1,10 +1,13 @@
-examples: minimal basic modern animation nonblock xkcd
+examples: minimal basic eventplot modern animation nonblock xkcd
 
 minimal: examples/minimal.cpp matplotlibcpp.h
 	cd examples && g++ -DWITHOUT_NUMPY minimal.cpp -I/usr/include/python2.7 -lpython2.7 -o minimal -std=c++11
 
 basic: examples/basic.cpp matplotlibcpp.h
-	cd examples && g++ basic.cpp -I/usr/include/python2.7 -lpython2.7 -o basic
+	cd examples && g++ basic.cpp -I/usr/include/python2.7 -lpython2.7 -o basic -std=c++11
+
+eventplot: examples/eventplot.cpp matplotlibcpp.h
+	cd examples && g++ eventplot.cpp -I/usr/include/python2.7 -lpython2.7 -o eventplot -std=c++11 -g
 
 modern: examples/modern.cpp matplotlibcpp.h
 	cd examples && g++ modern.cpp -I/usr/include/python2.7 -lpython2.7 -o modern -std=c++11
@@ -19,4 +22,4 @@ xkcd: examples/xkcd.cpp matplotlibcpp.h
 	cd examples && g++ xkcd.cpp -I/usr/include/python2.7 -lpython2.7 -o xkcd -std=c++11
 
 clean:
-	rm -f examples/{minimal,basic,modern,animation,nonblock,xkcd}
+	rm -f examples/{minimal,basic,modern,animation,nonblock,xkcd,eventplot}

examples/eventplot.cpp

@@ -0,0 +1,34 @@
+#define _USE_MATH_DEFINES
+#include <iostream>
+#include <cmath>
+#include "../matplotlibcpp.h"
+
+namespace plt = matplotlibcpp;
+
+int main()
+{
+    // Prepare data.
+    std::vector<std::vector<double>> events;
+    events.push_back({2,5,10,25});
+    events.push_back({20,21,22,24});
+    events.push_back({4,8,12,14,16,17,18});
+    events.push_back({10,11,12,13.5});
+
+
+
+    // Set the size of output image = 1200x780 pixels
+    plt::figure_size(1200, 780);
+
+    plt::eventplot(events);
+
+    // Add graph title
+    plt::title("Event plot");
+    plt::xlabel("Time in ms");
+    plt::ylabel("Neuron ID");
+
+    plt::show();
+    // save figure
+    const char* filename = "./events.png";
+    std::cout << "Saving result to " << filename << std::endl;;
+    plt::save(filename);
+}