if (array_key_exists($resultKey, $previousSessions[$i]->getRaw("measures"))) {
                        $previousMeasures = $previousSessions[$i]->getRaw("measures");
                        array_push($measureValues, $previousMeasures[$resultKey]["measures"]["value"]["value"]);
                    }
                }
                // Push current measure into the array
                array_push($measureValues, $measure["measures"]["value"]["value"]);
                // If there is only current measure, push it another time to get a flat graph
                if (count($measureValues) == 1) {
                    array_push($measureValues, $measure["measures"]["value"]["value"]);
                }
                // Compute min, max, average and median
                $min = min($measureValues);
                $max = max($measureValues);
                $avg = array_sum($measureValues) / count($measureValues);
                $med = MiscUtils::median($measureValues);
                ?>

										<td class="testcase_graph">
											<div class="bluff-wrapper2" style="">
												<canvas id="nft-history-graph-<?php 
                echo $measure["id"];
                ?>
" width="300" height="45"></canvas>
												<script type="text/javascript">
													var g = new Bluff.Line('nft-history-graph-<?php 
                echo $measure["id"];
                ?>
', '300x45');
													g.tooltips = true;