feat(dashboard): 添加区域转移概率统计功能

将1-49数字分为5个区域(1-10/11-20/21-30/31-40/41-49)，统计特码从一个区域转移到另一个区域的概率矩阵，在控制台页面以彩色表格展示
2026-04-25 23:07:26 +08:00
parent 78e7233bc0
commit 28415a1d4d
3 changed files with 104 additions and 2 deletions
@@ -464,7 +464,8 @@ class History extends Model
            'bigsmall' => $this->getBigSmallAnalysis($periods, 'special'),
            'special' => $this->getSpecialTrend($periods),
            'tailnumbers' => $this->getTailNumbers($periods, 'special'),
-            'heatmap' => $this->getSpecialHeatmap($periods)
+            'heatmap' => $this->getSpecialHeatmap($periods),
+            'zonetransition' => $this->getZoneTransition($periods)
        ];
    }

@@ -662,6 +663,69 @@ class History extends Model
        return ['hot' => $hot, 'cold' => $cold, 'warm' => $warm];
    }

+    /**
+     * 区域转移概率统计
+     * 将1-49分为5个区域，统计特码从一个区域转移到另一个区域的概率
+     * 区域1: 1-10, 区域2: 11-20, 区域3: 21-30, 区域4: 31-40, 区域5: 41-49
+     * @param int $periods 查询最近多少期
+     * @return array {zones: [], matrix: [], probabilities: [], total_transitions: int}
+     */
+    public function getZoneTransition($periods = 100)
+    {
+        $history = $this
+            ->field('expect,num7,openTime')
+            ->order('openTime', 'asc')
+            ->limit($periods)
+            ->select();
+
+        if (empty($history) || count($history) < 2) {
+            return ['zones' => ['1-10','11-20','21-30','31-40','41-49'], 'matrix' => [], 'probabilities' => [], 'total_transitions' => 0];
+        }
+
+        $zoneLabels = ['1-10', '11-20', '21-30', '31-40', '41-49'];
+        $matrix = array_fill(0, 5, array_fill(0, 5, 0));
+        $rowTotals = array_fill(0, 5, 0);
+
+        $getZone = function ($num) {
+            if ($num <= 10) return 0;
+            if ($num <= 20) return 1;
+            if ($num <= 30) return 2;
+            if ($num <= 40) return 3;
+            return 4;
+        };
+
+        $totalTransitions = 0;
+        for ($i = 0; $i < count($history) - 1; $i++) {
+            $currentNum = (int)$history[$i]['num7'];
+            $nextNum = (int)$history[$i + 1]['num7'];
+            if ($currentNum < 1 || $currentNum > 49 || $nextNum < 1 || $nextNum > 49) continue;
+
+            $from = $getZone($currentNum);
+            $to = $getZone($nextNum);
+            $matrix[$from][$to]++;
+            $rowTotals[$from]++;
+            $totalTransitions++;
+        }
+
+        // 计算概率矩阵
+        $probabilities = array_fill(0, 5, array_fill(0, 5, 0));
+        for ($i = 0; $i < 5; $i++) {
+            if ($rowTotals[$i] > 0) {
+                for ($j = 0; $j < 5; $j++) {
+                    $probabilities[$i][$j] = round($matrix[$i][$j] / $rowTotals[$i] * 100, 1);
+                }
+            }
+        }
+
+        return [
+            'zones' => $zoneLabels,
+            'matrix' => $matrix,
+            'probabilities' => $probabilities,
+            'row_totals' => $rowTotals,
+            'total_transitions' => $totalTransitions
+        ];
+    }
+
    /**
     * 特码热力图数据
     * @param int $periods 查询最近多少期