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wangyx0411702鐵桿木蟲 (正式寫手)
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[交流]
design expert軟件使用求助 已有1人參與
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師兄師姐們,請教一個優(yōu)化類問題。我在文獻(xiàn)中看到用design expert軟件進(jìn)行Plackett–Burman結(jié)果分析時,有對各實驗因素進(jìn)行Standardized effects, F-value, p-value, t-value, Sum of squares, Mean square等分析的數(shù)據(jù)表,但是我用軟件分析后卻得不全。只有對響應(yīng)值有顯著影響的因素有這些數(shù)據(jù),其它沒有顯著影響且被軟件自動去除的因素,軟件卻沒有給出。我的操作是這樣的: 1、我的P-B實驗數(shù)據(jù)輸入后,在Analysis板塊下,點擊Effects后,再點擊左側(cè)Effects Tool小框中的Effects list,隨后在右邊對話框中Selection下選擇Backgward, 其后的Alpha Out 項自動給出為0.1000, 最后的Order下選擇Main effect。 2、然后,再點擊ANOVA,出現(xiàn)的結(jié)果框中顯示出: Coefficient t for H0 Removed Estimate Coeff=0 Prob > |t| R-Squared MSE F-Urea -0.00169 0.14687 0.1000 1.000 A-Glucose -0.00194 -1.15252 0.455 0.997435 3.41E-05 L-FeSO4 -0.00518 -2.85008 0.1042 0.994029 3.97E-05 C-Sucrose -0.00544 -1.62793 0.202 0.969776 0.000134 H-NH4Cl -0.00561 -1.41422 0.2302 0.943077 0.000189 D-Peptone 0.006733 1.54841 0.1822 0.914615 0.000227 E-Ammonium sulfate0.00838 1.735416 0.1334 0.873671 0.00028 ANOVA for selected factorial model Analysis of variance table [Partial sum of squares - Type III] Source Sum of Mean p-value Squares df Square F Value Prob > F Model 0.011 4 2.69E-03 7.47 0.0114 significant B-Dextrin 2.43E-03 1 2.43E-03 6.74 0.0356 G-Yeast extract 2.94E-03 1 2.94E-03 8.17 0.0244 J- K2HPO4 2.19E-03 1 2.19E-03 6.09 0.043 K- MgSO4 3.20E-03 1 3.20E-03 8.89 0.0205 Residual 2.52E-03 7 3.60E-04 Cor Total 0.013 11 The Model F-value of 7.47 implies the model is significant. There is only a 1.14% 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 B, G, J, K 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. Coefficient Standard 95% CI 95% CI Factor Estimate df Error Low High VIF Intercept 0.039747 1 0.005479 0.026792 0.052702 B-Dextrin -0.01423 1 0.005479 -0.02718 -0.00127 1 G-Yeast extract 0.01566 1 0.005479 0.002705 0.028615 1 J- K2HPO4 0.01352 1 0.005479 0.000566 0.026476 1 K- MgSO4 0.01633 1 0.005479 0.00338 0.029289 1 隨后就是對響應(yīng)給出的方程了。這個軟件從一無所知到現(xiàn)在知之不多,已經(jīng)折騰我兩個月了,各位專家級師兄師姐,請不吝幫我分析一下好嗎?再次成分感激,謝謝您。! |
金蟲 (小有名氣)

新蟲 (小有名氣)
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