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feizaiyey

银虫 (小有名气)

[求助] 响应面结果分析 已有1人参与

响应面显著性分析结果如下:
        Sum of                Mean        F        p-value
Source        Squares        df        Square        Value        Prob > F
Model        791.13        6        131.86        4.01        0.0262        significant
  A-P        194.37        1        194.37        5.91        0.0353
  B-t        93.57        1        93.57        2.85        0.1224
  C-C        134.10        1        134.10        4.08        0.0710
  AB        170.56        1        170.56        5.19        0.0459
  AC        146.98        1        146.98        4.47        0.0606
  BC        51.55        1        51.55        1.57        0.2389
Residual        328.64        10        32.86
Lack of Fit        247.33        6        41.22        2.03        0.2573        not significant
Pure Error        81.31        4        20.33
Cor Total        1119.77        16
The Model F-value of 4.01 implies the model is significant.  There is only
a 2.62% chance that a "Model F-Value" this large could occur due to noise.

Values of "Prob > F" less than 0.0500 indicate model terms are significant.  
In this case A, AB are significant model terms.  
Values greater than 0.1000 indicate the model terms are not significant.  
If there are many insignificant model terms (not counting those required to support hierarchy),  
model reduction may improve your model.

The "Lack of Fit F-value" of 2.03 implies the Lack of Fit is not significant relative to the pure
error.  There is a 25.73% chance that a "Lack of Fit F-value" this large could occur due
to noise.  Non-significant lack of fit is good -- we want the model to fit.
模型显著,失拟不显著,A、AB显著,其余项不显著,那回归方程还是显著吗?模型有没有问题?谢谢!
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三丫头LY悦

铜虫 (小有名气)

到底这个结果能用不啊?
6楼2015-01-09 18:50:08
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2楼2014-05-06 12:38:44
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幸福的柴门

木虫 (正式写手)

引用回帖:
2楼: Originally posted by zybpxy at 2014-05-06 12:38:44
幸福的柴门

版主@我了啊,我来解答。。。
3楼2014-05-06 13:36:40
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幸福的柴门

木虫 (正式写手)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
feizaiyey: 金币+10, ★★★很有帮助 2014-05-06 13:58:19
Model was significant, Lack of Fit  was  not significant,说明你的模型是可以的,即回归方程是可以的,但是你的因子只有3个,而且只有一个是显著的,互作里面也只有一个是显著的,要是想拿此来发文章估计困难。前几年响应面类的实验挺风火,近2年已呈现疲软趋势,新异性不是很大了。祝顺利。
4楼2014-05-06 13:40:02
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