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Latest Discussions

• How do I compare differences between LS-means

  Is there a way to compare the differences between the LS-means of several groups? In other words, how can I detect differences between the differences in different groups? If I run a linear model on my original data, I can use multiple comparisons to get the difference between the LS-mean of each group and the standard errors of those differences. Can I go a step further and do another test to see...

  jeekhoff

  Discussions |

  Oct 18, 2021 10:17 AM

  2748 views | 2 replies

• 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

  3723 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

  2192 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

  4555 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