147 lines
5.0 KiB
C#
147 lines
5.0 KiB
C#
// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
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//
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// 本项目主要遵循 MIT 许可证和 Apache 许可证（版本 2.0）进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
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//
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// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动！任何基于本项目二次开发而产生的一切法律纠纷和责任，我们不承担任何责任！
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Admin.NET.Core.Util;
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public class MajorPlanscoreTool
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{
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// 计算标准差
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private static double CalculateStandardDeviation(int[] values)
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{
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double average = values.Average();
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double sumOfSquares = values.Sum(val => Math.Pow(val - average, 2));
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return Math.Sqrt(sumOfSquares / values.Length);
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}
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/// <summary>
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/// 正态分布计算
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/// </summary>
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/// <param name="scorelist"></param>
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/// <param name="requestScore"></param>
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/// <returns></returns>
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public static string CalctPercentage(List<int> scorelist, int requestScore)
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{
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var scores = scorelist.ToArray();
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// 计算平均值和标准差
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double average = scores.Average();
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double stdDev = CalculateStandardDeviation(scores);
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// 根据平均值和标准差计算可能的录取分数范围
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int min = (int)Math.Floor(average - 1.96 * stdDev); // 使用 95% 置信区间
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int max = (int)Math.Ceiling(average + 1.96 * stdDev); // 使用 95% 置信区间
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// 确保范围在有效分数范围内（0 到 750）
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min = Math.Max(min, 0);
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max = Math.Min(max, 750);
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// 计算你的分数在范围内的百分比
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// 计算你的分数在范围内的百分比
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double percentage = 0;
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if (max != min)
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percentage = (double)(requestScore - min) / (max - min);
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return percentage.ToString();
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}
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/// <summary>
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/// 冲稳保百分比(逻辑待调整)
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/// </summary>
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/// <param name="lowScore"></param>
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/// <param name="requestScore"></param>
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/// <returns></returns>
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public static string GetPlanPercentage(int lowScore, int requestScore)
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{
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int scoreGap = requestScore - lowScore; // 正确计算方式int scoreGap = requestScore - lowScore; // 正确计算方式
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double probability;
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if (scoreGap < -25) // 🎯 冲：低于目标分 25 分以上，低概率，最多 30%
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{
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probability = 0.05 + (25.0 / (-scoreGap + 1)) * 0.25;
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probability = Math.Min(probability, 0.3);
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}
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else if (scoreGap >= -25 && scoreGap <= 0) // 🎯 稳：接近目标分，概率 40%-70%
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{
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probability = 0.4 + ((25 + scoreGap) / 25.0) * 0.3;
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}
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else // 🎯 保：已达标，分差越大概率越高，70%-99%
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{
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probability = 0.7 + (Math.Min(scoreGap, 30) / 30.0) * 0.29; // 最高 99%
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}
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return (probability * 100).ToString("0") + "%";
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}
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/// 根据分数计算冲、稳、保类型（冲=2，稳=1，保=0）
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/// </summary>
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/// <param name="lowScore">最低分</param>
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/// <param name="requestScore">目标分</param>
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/// <returns>0-保，1-稳，2-冲</returns>
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public static int GetPlanScore(int lowScore, int requestScore)
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{
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int scoreGap = requestScore - lowScore; // 正确计算方式
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if (scoreGap < -25)
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{
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return 2; // 🎯 冲
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}
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else if (scoreGap >= -25 && scoreGap <= 0)
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{
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return 1; // 🎯 稳
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}
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else
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{
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return 0; // 🎯 保
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}
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}
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/// <summary>
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/// 百分比
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/// </summary>
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/// <param name="LowScore"></param>
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/// <param name="requestScore"></param>
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/// <returns></returns>
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public static string GetAvgPlanPercentage(double LowScore, int requestScore)
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{
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//int minscore = requestScore - 60;//最小
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//int constscore = requestScore;//中位数
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//int maxscore = requestScore + 15;//最大
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string percentage = string.Empty;
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if (LowScore >= requestScore - 60 && LowScore <= requestScore - 26)
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{
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double zval = (requestScore / LowScore) > 1 ? 0.98 : (requestScore / LowScore);
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percentage = zval.ToString("0%");
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}
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if (LowScore <= requestScore - 1 && LowScore >= requestScore - 26)
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{
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double zval = (requestScore / LowScore) > 1 ? 0.79 : (requestScore / LowScore) * 0.8;
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percentage = zval.ToString("0%");
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}
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if (LowScore >= requestScore && LowScore <= requestScore + 30)
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{
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double zval = (requestScore / LowScore + 30) * 0.3 > 1 ? 0.29 : (requestScore / LowScore);
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percentage = zval.ToString("0%");
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}
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return percentage;
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}
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}
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