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Latest Discussions

  • Fraction of Design Space Plot

    I would like some help making use of the fraction of design space plots to size my DoEs. What I want to be able to do for a given DoE is input my desired precision, the known standard deviation of the response, and the alpha value (confidence level). What I'm expecting then is to get a FDS value in % that describes the percent of the design space that meets my set criteria.  I don't understand wha...

    schlesin schlesin
    Discussions |
    Aug 28, 2023 11:47 AM
    2565 views | 3 replies

  • effect of centre points

    Hello: It is mentioned that adding centre point in the DOE will help in understanding if there is any curvature effect. But those points will not help you know which factors are the source of this nonlinearity (see below image) I have some questions based on thisQ1) What parameters should we look in the analysis to see if there is a curvature effect?Q2) If we find out that we have curvature effect...

    VarunK VarunK
    Discussions |
    Aug 28, 2023 5:56 AM
    2429 views | 3 replies

  • Backward regression for Mixture DOE analysis with regular (non pro) JMP?

    I am working on a DOE training where regular JMP will be used so for DOE analysis Generalized Regression can’t be used. This is a pity for GenReg SVEM results for mixtures are excellent, great tool!With regular JMP I tried stepwise and all possible models for mixtures and notice quite non reproducible results so – as show in JMP webinars -  I switched to simple Standard Least Squares backward anal...

    frankderuyck frankderuyck
    Discussions |
    Aug 26, 2023 4:37 PM
    4189 views | 8 replies

  • Query on recoded factor variables

    Hello:I am running an experiment with three factors, all are continuous. Two of the factors have three levels and one factor has 2 levels.I was trying with the analysis outcome with recoded factor levels.The one of the factor has levels 2, 4.5 and 7 and so I recoded them as -1, 0 and 1 as 4.5 is the exact center between 2 and 7.The other three level factor has levels 2, 4.5 and 6.5. Now 4.5 is not...

    VarunK VarunK
    Discussions |
    Aug 25, 2023 9:54 AM
    1399 views | 2 replies

  • Difference between factorial design and custom design

    Hello: I am just trying to understand the reason behind different experiments in factorial and custom design.I have three factors all of them are continuous. Two factors have three levels while one factor has two level.I initially did a normal full factorial design having 18 experiments with no replicates.Below is the experiment set-up that I got Below plot shows the wing_length vs base_length exp...

    VarunK VarunK
    Discussions |
    Aug 23, 2023 12:25 PM
    1483 views | 2 replies

Latest Discussions

  • Some basic questions about my first DOE response surface design

    Hi everyone, I'm quite new to JMP Pro and the questions I'm about to ask are pretty basic.  I have two independent variables and a dependent variable (response), all three measured using a seven-point Likert scale. The goal is to analyze the within-individual perceptual (in)congruence between the independent variables and their influence on the response. My sample size is 260. Question 1: When I c...

    MIS MIS
    Discussions |
    Aug 22, 2023 2:16 PM
    2910 views | 5 replies

  • Degrees of freedom for t-value in DOE confidence interval calculations

    Hello. I am new here. I have a 2^3 full factorial screening DOE with 3 centre-points. I am fitting a second-degree interactions model, so there are 4 df left for the Total Error; 2 for lack of fit, 2 for pure error. When I display the Parameter Estimates, the Std Error using the "Default" Error Specification is correct and the 95% CIs use a t-value of 2.776 based on 4 df. When I switch to "Pure Er...

    BurnStats BurnStats
    Discussions |
    Aug 21, 2023 9:53 PM
    1241 views | 1 replies

  • Mixture sum option for space filling design

    Is there a way to specify a mixture sum other than 1 (i.e. 100%) when creating a space filling mixture design? I am aware this can be done using the custom design option, but I want to specifically make a space filling mixture design, and to my knowledge this can't be done through the custom design option. Thanks!

    schlesin schlesin
    Discussions |
    Aug 21, 2023 10:58 AM
    2535 views | 5 replies

  • DOE - How to handle uncontrolled factors directly affected by other factors using custom DOE

    I am fairly novice to this stuff so I will define the situation. Please share your thoughts on the situation. I have two factors (Inputs A, B) that individually and directly affect factors C and D (Measurements). Increasing either A, or B leads to an increase in C and D. The issue is that currently, I am trying to decouple the benefits of A and B from C and D. I attempted an RSM DOE where I left C...

    MetaLizard62080 MetaLizard62080
    Discussions |
    Aug 21, 2023 6:51 AM
    2687 views | 5 replies

  • Creation of a DoE

    Dear Sir/Madam, For an optimization study my team wants to use JMP to create a DoE design that maximizes output and minimizes the amount of experiments. We have 3 continuous variables (duration; velocity; volume) that have two levels each. To my limited knowledge a Full Factorial DoE would require 2^3 = 8 experiments. Is there a possibility to create a DoE design that requires less than 8 experime...

    Biotech1 Biotech1
    Discussions |
    Aug 21, 2023 3:42 AM
    964 views | 1 replies

Latest Discussions

  • 49 factor dsd design

    When designing dsd with 49 factors and 4 additional runs. Why do I get 109 runs and not 105 runs?

    ConditionalRam9 ConditionalRam9
    Discussions |
    Jul 22, 2023 7:29 AM
    670 views | 0 replies

  • Main Menu("command") - return value?

    If I open a file via open("filename"), the command returns a reference to the data table which can be used as dt = open("filename");If I trigger open viadt = Main Menu("open")it doesn't return a reference to the data table. In general, is there a way, when triggering a command from the Main Menu, to get the return value?e.g. a reference to a data table for a user defined file loader - or an error ...

    hogi hogi
    Discussions |
    Jun 7, 2023 8:42 AM
    746 views | 0 replies

  • how to read the output from Johnson-Neyman plot and floodlight analyisis?

    hi,I have got an add-in from https://community.jmp.com/t5/JMPer-Cable/Who-what-why-and-how-Tools-for-modeling-and-visualizing/bc-p/624293#M842 to implement floodlight analysis through Johnson-Neyman Plot.  according to the table of the example from the linkage above; what does "_c" mean? such as "meaning_c" and overwhelming_c"? focus on my own study, I got a moderator called "SE" which is a contin...

    Rongyu_Kuang Rongyu_Kuang
    Discussions |
    Apr 23, 2023 8:56 AM
    1383 views | 0 replies

  • Response Screening Effect Size - logistic

    Related to the previous post How to get "Effect size" column with Response Screening functionality , I am also wondering how effect size in the response screening platform is calculated, specifically for categorical Y vs continuous X.  JMP help shows:  "When Y is categorical and X is continuous, the effect size is the square root of the average ChiSquare value for the whole model test."  Running b...

    wgardnerQS wgardnerQS
    Discussions |
    Dec 14, 2022 12:54 PM
    1092 views | 0 replies

  • DoE with two-choice experiments, continuous response variable

    We want to rank the preference  of population of animals for n different recipes. Recipes are tested in two-choice assays, where groups of over 100 individuals can choose one choice or the other. Preference for the group is computed as a preference index, a continuous variable that is between -1 and 1. Is there an experimental design that would help reduce the number of combinations to test in ord...

    Alexa_Guigue Alexa_Guigue
    Discussions |
    Nov 19, 2021 7:06 AM
    864 views | 0 replies
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