/***
* 计算高分人数，低分人数，平均分
*
* */
public static StatRecord coreCalc(List<Student> studentList, float highScore, float lowScore, string defaultName)
{
float meanScore = CoreService.calcMeanScore(studentList);
List<Student> highStudentList = CoreService.calcScoreRange(studentList, highScore, 101);
List<Student> lowStudentList = CoreService.calcScoreRange(studentList, 0, lowScore);
string name = studentList[0].getClazz();
if (!StringUtils.isBlank(defaultName))
{
name = defaultName;
}
StatRecord record = new StatRecord(name, studentList.Count, meanScore, highStudentList, lowStudentList,highScore,lowScore);
return record;
}
private static DataTable renderStatTable(StatRecord statRecord1, StatRecord statRecord2)
{
DataTable dt = DataTableManager.newDataTable(new string[] { "名称", "总人数", "平均分", "高分线","高分人数","高分率", "低分线","低分人数","低分率" });
float highRate = statRecord1.getHighScoreCount()*1000*0.1f/statRecord1.getTotalCount();
float lowRate = statRecord1.getLowScoreCount()*1000*0.1f/statRecord1.getTotalCount();
DataRow dr = dt.NewRow();
dr[0] = "上次统计结果";
dr[1] = statRecord1.getTotalCount();
dr[2] = Convert.ToDecimal(statRecord1.getMeanScore()).ToString("0.00");
dr[3] = Convert.ToDecimal(statRecord1.highScoreLine + 0.0001f).ToString("0.00") ;
dr[4] = statRecord1.getHighScoreCount();
dr[5] = Convert.ToDecimal(highRate).ToString("0.00")+"%";
dr[6] = Convert.ToDecimal(statRecord1.lowScoreLine + 0.0001f).ToString("0.00");
dr[7] = statRecord1.getLowScoreCount();
dr[8] = Convert.ToDecimal(lowRate).ToString("0.00") + "%";
dt.Rows.Add(dr);
dr = dt.NewRow();
float highRate2 = statRecord2.getHighScoreCount()*100/statRecord2.getTotalCount();
float lowRate2 = statRecord2.getLowScoreCount()*100/statRecord2.getTotalCount();
dr[0] = "本次统计结果";
dr[1] = statRecord2.getTotalCount();
dr[2] = Convert.ToDecimal(statRecord2.getMeanScore()).ToString("0.00");
dr[3] = Convert.ToDecimal(statRecord2.highScoreLine+0.0001f).ToString("0.00");
dr[4] = statRecord2.getHighScoreCount();
dr[5] = Convert.ToDecimal(highRate2).ToString("0.00") + "%";
dr[6] = Convert.ToDecimal(statRecord2.lowScoreLine+0.0001f).ToString("0.00");
dr[7] = statRecord2.getLowScoreCount();
dr[8] = Convert.ToDecimal(lowRate2).ToString("0.00") + "%";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = "比较结果";
dr[1] = statRecord2.getTotalCount();
dr[2] = Convert.ToDecimal(statRecord2.getMeanScore()-statRecord1.getMeanScore()).ToString("0.00"); //平均分提升率
dr[3] = statRecord2.highScoreLine - statRecord1.highScoreLine;
dr[4] = statRecord2.getHighScoreCount() - statRecord1.getHighScoreCount();
dr[5] = Convert.ToDecimal((highRate2 - highRate)).ToString("0.00") + "%"; //高分提高率
dr[6] = statRecord2.lowScoreLine - statRecord1.lowScoreLine;
dr[7] = statRecord2.getLowScoreCount() - statRecord1.getLowScoreCount();
dr[8] = Convert.ToDecimal(lowRate2 - lowRate).ToString("0.00") + "%";
dt.Rows.Add(dr);
return dt;
}
