 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 1 | 1/1 | 返回列表 |
| 查看: 1851 | 回復(fù): 0 | ||
[求助]
用design expert優(yōu)化制備工藝的問題求解 求統(tǒng)計(jì)高手
|
|
第一次用design expert，本身數(shù)學(xué)也不好，摸摸爬爬寫了篇文章，是優(yōu)化制備條件的，選擇最佳溫度，時(shí)間，配比。 給老師看，老師的意見是：“最后數(shù)據(jù)統(tǒng)計(jì)分析還需要補(bǔ)充分析數(shù)據(jù)，根據(jù)模型最佳工藝條件應(yīng)該推算出來”。 下圖是他給的表，讓我 補(bǔ)充紅色字體。 我一開始的模型里沒有選擇紅色的這些項(xiàng)，因?yàn)槲以嚵撕枚噙x擇，只有這種情況時(shí)，p-value，Prob > F顯著，而失擬值Lack of Fit不顯著 當(dāng)我按照老師的要求修改時(shí)， 方差分析如下： Sum of Mean F p-value Source Squares df Square Value Prob > F Model 89.81 12 7.48 50.39 0.0009 significant A-reaction?time 0.12 1 0.12 0.80 0.4223 B-temperature 3.57 1 3.57 24.04 0.0080 C-reactants ratio 2.00 1 2.00 13.49 0.0213 AB 13.85 1 13.85 93.23 0.0006 AC 0.48 1 0.48 3.21 0.1475 BC 0.099 1 0.099 0.67 0.4603 A^2 0.46 1 0.46 3.07 0.1545 B^2 2.16 1 2.16 14.53 0.0189 C^2 11.93 1 11.93 80.33 0.0009 A^2B 10.79 1 10.79 72.66 0.0010 A^2C 0.59 1 0.59 3.99 0.1163 AB^2 2.56 1 2.56 17.23 0.0142 AC^2 0.000 0 B^2C 0.000 0 BC^2 0.000 0 Pure Error 0.59 4 0.15 Cor Total 90.40 16 The Model F-value of 50.39 implies the model is significant. There is only a 0.09% 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, C, AB, B++2+-, C++2+-, A++2+-B, AB++2+- 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. Std. Dev. 0.39 R-Squared 0.9934 Mean 2.48 Adj R-Squared 0.9737 C.V. % 15.54 Pred R-Squared N/A PRESS N/A Adeq Precision 30.433 Case(s) with leverage of 1.0000: Pred R-Squared and PRESS statistic not defined "Adeq Precision" measures the signal to noise ratio. A ratio greater than 4 is desirable. Your ratio of 30.433 indicates an adequate signal. This model can be used to navigate the design space. Coefficient Standard 95% CI 95% CI Factor Estimate df Error Low High VIF Intercept 2.78 1 0.17 2.30 3.26 A-reaction?time -0.17 1 0.19 -0.71 0.36 2.00 B-temperature 0.94 1 0.19 0.41 1.48 2.00 C-reactants ratio 0.71 1 0.19 0.17 1.24 2.00 AB -1.86 1 0.19 -2.40 -1.33 1.00 AC -0.35 1 0.19 -0.88 0.19 1.00 BC -0.16 1 0.19 -0.69 0.38 1.00 A^2 0.33 1 0.19 -0.19 0.85 1.01 B^2 0.72 1 0.19 0.19 1.24 1.01 C^2 -1.68 1 0.19 -2.20 -1.16 1.01 A^2B 2.32 1 0.27 1.57 3.08 2.00 A^2C 0.54 1 0.27 -0.21 1.30 2.00 AB^2 -1.13 1 0.27 -1.89 -0.37 2.00 AC++2+- ALIASED A, AB++2+- B++2+-C ALIASED C, A++2+-C BC++2+- ALIASED B, A++2+-B ============================================================= W A R N I N G The model you selected has terms that are aliased with one another. If you continue, the least squares parameter estimates for aliased models will not be unique and the resulting contour plots will be misleading. ============================================================= Final Equation in Terms of Coded Factors: electrical conductivity = +2.78 -0.17 * A +0.94 * B +0.71 * C -1.86 * A * B -0.35 * A * C -0.16 * B * C +0.33 * A^2 +0.72 * B^2 -1.68 * C^2 +2.32 * A^2 * B +0.54 * A^2 * C -1.13 * A * B^2 Final Equation in Terms of Actual Factors: Not available for ALIASED models. The Diagnostics Case Statistics Report has been moved to the Diagnostics Node. In the Diagnostics Node, Select Case Statistics from the View Menu. Proceed to Diagnostic Plots (the next icon in progression). Be sure to look at the: 1) Normal probability plot of the studentized residuals to check for normality of residuals. 2) Studentized residuals versus predicted values to check for constant error. 3) Externally Studentized Residuals to look for outliers, i.e., influential values. 4) Box-Cox plot for power transformations. If all the model statistics and diagnostic plots are OK, finish up with the Model Graphs icon. 請問這樣的模型可以用嗎？ |
回復(fù)此樓» 猜你喜歡
哈爾濱理工大學(xué)物理系招收物理學(xué)考研調(diào)劑
已經(jīng)有7人回復(fù)
-
0702一志愿吉大B區(qū)求調(diào)劑
已經(jīng)有5人回復(fù)
-
物理學(xué)I論文潤色/翻譯怎么收費(fèi)?
已經(jīng)有118人回復(fù)
-
求調(diào)劑
已經(jīng)有0人回復(fù)
-
0702一志愿吉大B區(qū)求調(diào)劑有論文
已經(jīng)有0人回復(fù)
-
請問還有沒有用Latex寫文章的小伙伴們？
已經(jīng)有0人回復(fù)
-
光學(xué)工程學(xué)碩調(diào)劑信息
已經(jīng)有31人回復(fù)
-
歡迎加入課題組
已經(jīng)有0人回復(fù)
-
散金幣，求好運(yùn)，祝面上順利！
已經(jīng)有72人回復(fù)
-
華東師范大學(xué)芯片設(shè)計(jì)徐瓏真實(shí)水平咋樣
已經(jīng)有1人回復(fù)
-
調(diào)劑
已經(jīng)有0人回復(fù)
找到一些相關(guān)的精華帖子，希望有用哦~
design expert7.0
已經(jīng)有50人回復(fù)
- 關(guān)于Design Expert 8.0 響應(yīng)面優(yōu)化的問題
已經(jīng)有9人回復(fù)
- 響應(yīng)面分析中，用design-expert設(shè)計(jì)結(jié)果中很多最優(yōu)方法是怎么回事？如何選擇？
已經(jīng)有20人回復(fù)
- 不知怎么辦了，求助解答，謝謝
已經(jīng)有6人回復(fù)
- 蘋果多酚工藝優(yōu)化在design-expert軟件遇到的問題失擬項(xiàng)太明顯該怎么辦，急求解答謝謝
已經(jīng)有7人回復(fù)
- design expert8.0響應(yīng)面分析，這方差分析結(jié)果算是很好嗎？！~求助各位資深蟲友。
已經(jīng)有10人回復(fù)
- 響應(yīng)面 最優(yōu)條件下的理論預(yù)測值怎么求
已經(jīng)有12人回復(fù)
- Design expert設(shè)置參數(shù)
已經(jīng)有5人回復(fù)
- Design Expert 分析
已經(jīng)有6人回復(fù)
- 用design expert做了個(gè)響應(yīng)面，分析結(jié)果如下圖，請問效果如何
已經(jīng)有3人回復(fù)
- Design-Expert中模型F值與什么比較，失擬F值與什么進(jìn)行比較
已經(jīng)有9人回復(fù)
- 使用design-expert軟件BBD實(shí)驗(yàn)分析時(shí)，lack of fit項(xiàng)很顯著怎么辦？急求補(bǔ)救處理方法
已經(jīng)有20人回復(fù)
- 求助詳細(xì)的design expert軟件如何分析數(shù)據(jù)
已經(jīng)有18人回復(fù)
- design expert的失擬度很大
已經(jīng)有10人回復(fù)
點(diǎn)擊這里搜索更多相關(guān)資源科研從小木蟲開始，人人為我，我為人人
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 aagemini 的主題更新
| 1 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 323求調(diào)劑 +6 | 洼小桶 2026-03-18 | 6/300 |
|
|---|---|---|---|---|
|
|
[考研] 298求調(diào)劑 +6 | 上岸6666@ 2026-03-20 | 6/300 |
|
|
|
[考研] 306求調(diào)劑 +5 | 來好運(yùn)來來來 2026-03-22 | 5/250 |
|
|
[考研] 尋找調(diào)劑 +4 | 倔強(qiáng)芒? 2026-03-21 | 4/200 |
|
|
|
[考研] 305分求調(diào)劑（食品工程） +4 | Sxy112 2026-03-21 | 6/300 |
|
|
|
[考研] 考研調(diào)劑 +3 | 呼呼？~+123456 2026-03-21 | 3/150 |
|
|
|
[考研] 求助 +5 | 夢里的無言 2026-03-21 | 6/300 |
|
|
|
[考研] 330求調(diào)劑0854 +3 | assdll 2026-03-21 | 3/150 |
|
|
|
[考研] 材料學(xué)學(xué)碩080502 337求調(diào)劑-一志愿華中科技大學(xué) +4 | 順順順mr 2026-03-18 | 5/250 |
|
|
|
[考研] 070300化學(xué)319求調(diào)劑 +7 | 錦鯉0909 2026-03-17 | 7/350 |
|
|
|
[考研] 一志愿華中科技大學(xué)，080502，354分求調(diào)劑 +5 | 守候夕陽CF 2026-03-18 | 5/250 |
|
|
|
[考研] 一志愿華南師大 070300（化學(xué)）304分求調(diào)劑 +3 | 0703武芊慧雪304 2026-03-18 | 3/150 |
|
|
|
[考研] 274求調(diào)劑 +10 | S.H1 2026-03-18 | 10/500 |
|
|
|
[考研] 考研調(diào)劑求學(xué)校推薦 +3 | 伯樂29 2026-03-18 | 5/250 |
|
|
|
[考研] 317求調(diào)劑 +5 | 申子申申 2026-03-19 | 9/450 |
|
|
|
[考研] 290求調(diào)劑 +7 | ^O^乜 2026-03-19 | 7/350 |
|
|
|
[考研] 一志愿 南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩 +5 | @taotao 2026-03-20 | 5/250 |
|
|
|
[考研] 求調(diào)劑 +3 | eation27 2026-03-20 | 3/150 |
|
|
|
[考研] 085600材料與化工求調(diào)劑 +6 | 緒幸與子 2026-03-17 | 6/300 |
|
|
|
[考研] 085601求調(diào)劑 +4 | Du.11 2026-03-16 | 4/200 |
|