202601061518
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@@ -1086,12 +1086,12 @@ namespace WindowsFormsApp6
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DataRow rateRow = sampleDataTable.Rows[2];
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DataRow stdRow = sampleDataTable.Rows[4];
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// 清空标准偏差行的所有数据(初始化为0.0,显示时会根据是否有测试数据决定是否显示)
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// 清空标准偏差行的所有数据(设置为DBNull,不显示)
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for (int i = 1; i <= currentSampleCount; i++)
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{
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stdRow[$"试样{i}_1"] = 0.0;
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stdRow[$"试样{i}_2"] = 0.0;
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stdRow[$"试样{i}_3"] = 0.0;
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stdRow[$"试样{i}_1"] = DBNull.Value;
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stdRow[$"试样{i}_2"] = DBNull.Value;
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stdRow[$"试样{i}_3"] = DBNull.Value;
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}
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// 计算每组(5个试样)的标准偏差
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@@ -1133,17 +1133,17 @@ namespace WindowsFormsApp6
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stdDev = Math.Sqrt(sumOfSquares / (groupAverages.Count - 1));
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}
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// 只在该组第1个试样的第1列显示标准偏差,其他列保持DBNull
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// 只在该组第1个试样的第1列显示标准偏差,其他列保持DBNull(不显示)
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stdRow[$"试样{startSample}_1"] = Math.Round(stdDev, 2);
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}
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}
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else
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{
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// 横向布局
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// 清空所有行的标准偏差列(初始化为0.0,显示时会根据是否有测试数据决定是否显示)
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// 清空所有行的标准偏差列(设置为DBNull,不显示)
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foreach (DataRow row in sampleDataTable.Rows)
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{
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row[ROW_STD_DEVIATION] = 0.0;
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row[ROW_STD_DEVIATION] = DBNull.Value;
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}
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// 计算每组(5个试样)的标准偏差
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@@ -1188,25 +1188,12 @@ namespace WindowsFormsApp6
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stdDev = Math.Sqrt(sumOfSquares / (groupAverages.Count - 1));
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}
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// 只在该组第1个试样的第1次测试行显示标准偏差,其他行保持0.0
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// 只在该组第1个试样的第1次测试行显示标准偏差,其他行保持DBNull(不显示)
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int targetRowIndex = (startSample - 1) * 3; // 第1次测试的行索引
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if (targetRowIndex < sampleDataTable.Rows.Count)
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{
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sampleDataTable.Rows[targetRowIndex][ROW_STD_DEVIATION] = Math.Round(stdDev, 2);
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}
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// 其他行保持0.0(不显示)
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for (int i = startSample; i <= endSample; i++)
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{
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for (int j = 1; j <= 3; j++)
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{
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int rowIdx = (i - 1) * 3 + (j - 1);
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if (rowIdx != targetRowIndex && rowIdx < sampleDataTable.Rows.Count)
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{
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sampleDataTable.Rows[rowIdx][ROW_STD_DEVIATION] = 0.0;
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}
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}
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}
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}
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}
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}
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