Added dummy metric

demo.ipynb

@@ -171,6 +171,10 @@
     }
    ],
    "source": [
+    "from spatz.metrics import Metric\n",
+    "\n",
+    "metric = Metric()\n",
+    "\n",
     "logger = simulation.get_logger()\n",
     "\n",
     "# Set verbose to False to disable the progress bar\n",
@@ -183,7 +187,12 @@
     "    # Get the correct altitude data.\n",
     "    alt = altitude()\n",
     "\n",
-    "    # TODO: Add your computation here."
+    "    pred_alt = ...\n",
+    "    metric(alt, pred_alt)\n",
+    "\n",
+    "    # TODO: Add your computation here.\n",
+    "\n",
+    "print('Score was:', metric.get_score())"
    ]
   },
   {