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Latest Discussions

• Prediction screening

  Listened with great interest to the lecture on predictive models, and the suggestion to saved the Prediction formula to the dataset then re-run the Prediction screening with initial variables as X and adding the prediction formulas as new X's.     Today I discussed with a colleague, and his reaction was “ talking about over-fitting the models!" Will this approach over-fit models even more (even if...

  ChristerMalm

  Discussions |

  Oct 10, 2021 2:18 PM

  3720 views | 7 replies

• Combining models

  If I learned one thing from Discovery Summit Americas this year, it was how common it is to average and/or create ensemble models, something I had heard about but never considered (being a modeling novice). So I decided to do it. Making an ensemble model is easy; I saved the model as a prediction formula and simply included that as a predictor in the next round of model screening (using JMP Pro 16...

  abmayfield

  Discussions |

  Oct 8, 2021 9:56 AM

  2187 views | 3 replies

• Dunnett's for Multiple Ys

  I am trying to get a script that will run Dunnett's on multiple Ys automatically in fit model, my issues:   If I change the multiple comparisons part where the factor and level is not a variable it works but only for the first Y, it will not repeat the Dunnett's part for the remaining Ys.   So my questions:   1.  Why doesn't this work like the fit model with a variable being used for the factor an...

  lisamaley

  Discussions |

  Sep 29, 2021 1:35 PM

  4552 views | 12 replies

• Ordinal logistic regression

  Hi EveryoneI am very new to JMP. I have data on the scale of 0-4 on leaf damage scale on 15 eggplants taken every 48 hrs for 3 times on each plant. How can I represent dataset on the jmp .. or show data set for ordinal logistic regression?  Anyone can post data set table as an sample. Thank you 

  Sami

  Discussions |

  Sep 27, 2021 3:56 AM

  1591 views | 1 replies

• is there a script I can use to automate validation testing of my multiple regression model in JMP? (not JMP Pro)

  Hi - Is it possible to use a script or other approach to automate validation testing of my multiple regression model?  Currently, I am manually removing a subset of rows from my original model, using the balance of rows for regression, and then using the subset to evaluate how well the model performed.  I then repeat this numerous times.  It is very time consuming, especially given the fact that I...

  learning_JSL

  Discussions |

  Sep 20, 2021 1:21 PM

  2548 views | 6 replies