文本框录入 在线表格录入（Tab键横向，方向键(↓)键纵向）

你可将word，excel表的数据直接拷入左边的文本框内，按提交进行计算。

Succeed for sample data!
3条回归直线表述如下:

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 137
Y(i)= 33.5164 + 3.5079 * x(1)

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 137
Y(i)= 54.5702 + 2.3318 * x(2)

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 137
Y(i)= 43.1409 + 2.1176 * x(3)

总回归直线为:
Y=63.3333 + 1.5 * x

为了使直线的斜率估计得更加精确,把3部分的信息集中起来。求得共同斜率是: 2.4016
由此可得有共同斜率的3条回归直线依次是:

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165
Y(i)= 48.728 + 2.4016 * x(i)

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165
Y(i)= 53.2702 + 2.4016 * x(i)

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165

Warning: Use of undefined constant i - assumed 'i' (this will throw an Error in a future version of PHP) in D:\ms4w\Apache\htdocs\dsan\C12_dyzxfc.php on line 165
Y(i)= 35.9344 + 2.4016 * x(i)

扣除协变量影响后的方差分析表
方差来源平方和自由度均方F 值F 临界值
因子707.21872353.6093531.0709F05=3.49,F01=5.85
误差227.61462011.38073
总和934.833322

协方差分析
平方和修正
方差来源自由度∑x^2∑xy∑y^2平方和自由度均方F值F临界值
因子2545.25659.8751317.5833
误差20175.25420.8751238.375227.61461911.38
总和22720.51080.752555.96934.833322
707.21872353.6131.07F05=3.49,F01=5.85
下面打印的是修正的均值
修正的Y(1)平均值= 94.9588
修正的Y(2)平均值= 99.501
修正的Y(3)平均值= 82.1652

回归系数检验表
方差来源平方和自由度均方F值F临 界 值
回归1010.760411010.760488.81F0.05=4.35,F0.01=8.1
误差227.61462011.38073

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Warning: mysqli_query() expects at least 2 parameters, 1 given in D:\ms4w\Apache\htdocs\dsan\admin\db.php on line 6
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