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Learning Resources

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Latest Discussions

  • Space Filling Design - Fast Flexible Filling

    I applied a couple constraints when running a Space Filling DOE and it performed pretty well. However, the algorithm "Fast Flexible Filling" is a bit cryptic. Where can I find documentation that expounds on the algorithm/methods behind "Fast Flexible Filling"?   JMP Ver.18.0.1

    JeanK JeanK
    Discussions |
    May 5, 2025 9:03 AM
    750 views | 2 replies

  • Design space regions do not match.

    To practice using JMP, I am analyzing and reproducing data from papers. Among these, screening using the Plackett-Burman design and optimization using the central composite design were performed for three impurities to create a predictive model. Similar predictive model equations were created for all of the models described in the paper.   The paper states that pooling was performed during the opt...

    keita_ keita_
    Discussions |
    Apr 27, 2025 4:51 PM
    1213 views | 4 replies

  • Which experimental design is most appropriate when one of the factors is hard to change?

    Hello everyone,    I'm relatively new to DoE. Currently, I’m planning to run a screening design for 8 continuous factors, one of which is hard to change due to technical constraints.   Initially, I considered using a Definitive Screening Design (DSD) with a sorted run order. However, I’ve realized that this approach may not be appropriate when a split-plot structure is required.   Given this limit...

    Zhangyue Zhangyue
    Discussions |
    Apr 27, 2025 9:01 AM
    822 views | 2 replies

  • Predicted values for conversion over 100%.

    Hello everyone, I’m running a Central Composite Rotatable Design (CCRD) in JMP to optimize a chemical reaction, with conversion (%) as my response variable. By definition, conversion should range from 0% to 100%. However, my fitted model sometimes predicts conversion values greater than 100% (and occasionally less than 0%) for certain factor combinations. Here’s what I’ve done so far: My experime...

    CriticalRatios1 CriticalRatios1
    Discussions |
    Apr 25, 2025 5:31 AM
    1066 views | 2 replies

  • Guidance on Implementing Factor Constraints in JMP

    Dear JMP Community,

    I am attaching the Factors.jmp and RESPONSES.jmp files. We have specific conditions between the factors that we need to integrate into JMP to set up an experimental design for 8 trials. The conditions are as follows:

    If X7>0, then X4=0 AND X5=0 AND X6=0.If X4>0, then X1=0 AND X7=0 AND (X5>0 OR X6>0).If X5>0, then X6=0 AND X7=0.If X6>0, then X5=0 AND X7=0. Could you please guide...

    Yassir-EL Yassir-EL
    Discussions |
    Apr 24, 2025 9:08 AM
    2941 views | 7 replies

Latest Discussions

  • Space Filling Design - Fast Flexible Filling

    I applied a couple constraints when running a Space Filling DOE and it performed pretty well. However, the algorithm "Fast Flexible Filling" is a bit cryptic. Where can I find documentation that expounds on the algorithm/methods behind "Fast Flexible Filling"?   JMP Ver.18.0.1

    JeanK JeanK
    Discussions |
    May 5, 2025 9:03 AM
    750 views | 2 replies

  • Design space regions do not match.

    To practice using JMP, I am analyzing and reproducing data from papers. Among these, screening using the Plackett-Burman design and optimization using the central composite design were performed for three impurities to create a predictive model. Similar predictive model equations were created for all of the models described in the paper.   The paper states that pooling was performed during the opt...

    keita_ keita_
    Discussions |
    Apr 27, 2025 4:51 PM
    1213 views | 4 replies

  • Predicted values for conversion over 100%.

    Hello everyone, I’m running a Central Composite Rotatable Design (CCRD) in JMP to optimize a chemical reaction, with conversion (%) as my response variable. By definition, conversion should range from 0% to 100%. However, my fitted model sometimes predicts conversion values greater than 100% (and occasionally less than 0%) for certain factor combinations. Here’s what I’ve done so far: My experime...

    CriticalRatios1 CriticalRatios1
    Discussions |
    Apr 25, 2025 5:31 AM
    1066 views | 2 replies

  • Optimal experimental design in the presence of nested factors

    I wanted to learn how to do an optimal experimental design with nested factors.
    First, do a simple example with two machines (one with one switch) to compare speed (Response), described in the following research article.
    Goos, P., & Jones, B. (2019). Optimal experimental design in the presence of nested factors. Technometrics., https://repository.uantwerpen.be/docman/irua/056e33/160394_2019_10_25....

    rbosu rbosu
    Discussions |
    Apr 22, 2025 5:41 PM
    634 views | 1 replies

  • Limits Change Using Manage Limits Platform. Old limits don't go away.

    Hi, I have an issue where I'm trying to use the manage limits option to change limits on my current dataset. Following this example in here Example of Manage Limits . I'm able to change the limits and implement the new limits I need. However, the old limits don't go away. It shows up as a solid black line. I tried removing the spec limits from the column and re-implement it, but still no luck. It ...

    RA899 RA899
    Discussions |
    Apr 15, 2025 1:47 AM
    1263 views | 4 replies

Latest Discussions

  • Streamlining Data Workflows With JMP & MATLAB

    Integrating tools like JMP and MATLAB offers a streamlined approach to engineering analysis, making workflows more efficient and reducing the need for redundant script rewriting. By leveraging JMP’s powerful data analysis and visualization capabilities alongside MATLAB’s robust computational tools, engineers can seamlessly combine the strengths of both platforms. This integration allows for the ra...

    brycerjs8 brycerjs8
    Discussions |
    Feb 18, 2025 7:07 AM
    578 views | 0 replies

  • Sample size for Reliability Life Test

    I have used the interval explorer for parametric reliability life test planning for sample size calculation of accelerated life test. Please can someone confirm if the sample size returned is the total sample size or sample size per stress levels? Assuming I have 3 temperature levels, do I use 75 samples per temperature level or 25?

    EngrAkin EngrAkin
    Discussions |
    Dec 11, 2024 7:11 AM
    687 views | 0 replies

  • help to get R squared predicted

    Hello!I installed a script from a community response regarding the calculation of R²pred, as shown in the image below (I'm using JMP 18 pro): (link da resposta do @erich_gundlach https://community.jmp.com/t5/JMP-Add-Ins/Predicted-R-square-calculator/ta-p/39927)  In PRESS, R²pred didn't appear. (Press is low because I haven't reduced the model yet, don't worry =))  I really need to show these R²pre...

    ivanpicchi ivanpicchi
    Discussions |
    Dec 4, 2024 10:21 AM
    664 views | 0 replies

  • Sample size calculation for accelerated life testing

    I am trying to use the interval explorer for parametric reliability life test planning tool for sample size required for an ALT test but need some clarification on the following questions.         1. Is the Weibull alpha the characteristic life at stress or at use life? 2. Is the Quantile the pFail at stress or use life and how does the quantile impact the required sample size?3. Is the calculated...

    EngrAkin EngrAkin
    Discussions |
    Nov 29, 2024 8:45 AM
    676 views | 0 replies

  • How do I replace a prediction expression in a fit model with a specific expression?

    Hi, I am completing a DOE and I have ran a fit model using the JMP software to define a design space based on desirability of certain variables, however one of the desirability variables is a simple ratio of two of the construct model effects, however when running the model, the model is defining its own prediction expression for this variable rather than using the formula in the data table. Does ...

    supermackie93 supermackie93
    Discussions |
    Oct 24, 2024 5:40 AM
    667 views | 0 replies
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