usage.md

+In this example we want to predict TD Principal of the [Apache Kafka](https://github.com/apache/kafka) test project for 10 steps ahead. Apache Kafka dataset contains 150 versions, so we expect the response to contain predicted TD values for versions 151 to 160. We set the *horizon* parameter to *10* and the *regressor* parameter to *auto*, in order to allow the TD Forecaster to choose the best model based on training error minimization.
+
+Once the server is running, open your web browser and navigate to the following URL:
+
+http://127.0.0.1:5000/ForecasterToolbox/TDForecasting?horizon=10&project=apache_kafka_measures&regressor=auto&ground_truth=yes&test=no
+
+The response of the submitted command is a JSON object containing the forecasted TD values of the Apache Kafka test project for versions 151 to 160 (10 steps) ahead, using the Ridge regressor, which the back-end selected as the most appropriate model for this occasion. This JSON object is illustrated below:
+
+```json
+{
+    "message": "The request was fulfilled.",
+    "results": {
+        "forecasts": [{
+                "value": 62319.09731430385,
+                "version": 151
+            },
+            {
+                "value": 62516.381787162965,
+                "version": 152
+            },
+            {
+                "value": 62690.433655431836,
+                "version": 153
+            },
+            {
+                "value": 62870.72795431035,
+                "version": 154
+            },
+            {
+                "value": 63045.263349635316,
+                "version": 155
+            },
+            {
+                "value": 63226.55220201901,
+                "version": 156
+            },
+            {
+                "value": 63422.0804451476,
+                "version": 157
+            },
+            {
+                "value": 63630.16211082426,
+                "version": 158
+            },
+            {
+                "value": 63849.70018133768,
+                "version": 159
+            },
+            {
+                "value": 64080.05189562486,
+                "version": 160
+            }
+        ],
+        "parameters": {
+            "ground_truth": "no",
+            "horizon": 10,
+            "project": "apache_kafka_measures",
+            "regressor": "ridge",
+            "test": "no"
+        }
+    },
+    "status": 200
+}
+```
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