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Latest Discussions

• k-NN visualization in JMP

  Hi folks, Longtime JMP Pro user here but fairly new to working with the k-Nearest Neighbors classification module.  I'm working with a visible reflectance spectroscopy data set for a geological material classification (two-class) problem.  I have a fairly well-optimized k-NN model at this point with a low misclassification rate on my test set.  So far, so good.  However, I am looking for a way to ...

  redrock

  Discussions |

  Mar 1, 2021 4:00 AM

  2905 views | 3 replies

• Microbial activity and shelf-life estimation

  I realize that this is a little bit off-topic, but still relevant with respect to JMP's degradation/stability platform. I was wondering how to estimate shelf-life from microbiological tests (aerobic plate count for example). Literature and ICH only tell me that "Qualitative attributes and microbiological attributes are not amenable to this kind of statistical analysis" (read " not amenable to line...

  Ressel

  Discussions |

  Feb 24, 2021 6:17 AM

  1701 views | 1 replies

• alternative cut-off confusion matrix

  I have used the alternative cut-off probability confusion matrix add-in many times.  Suddenly it is producing nonsensical results on some data sets.  I verified that it still works as expected on an old data set.  Attached is one of the recent data sets in which it does not appear to be working.  The target variable is Stroke and I have a Validation column and a number of prediction model probabil...

  dale_lehman

  Discussions |

  Feb 18, 2021 9:11 AM

  2830 views | 5 replies

• How to interpret ordinal logistic regression beta, confidence interval, and chi square p value?

  https://www.jmp.com/support/help/en/15.2/index.shtml#page/jmp/example-of-ordinal-logistic-regression.shtmlHere, what do the beta and the significant p-value indicate? For every unit increase in duration ...?    

  eduffley

  Discussions |

  Feb 16, 2021 9:58 AM

  3388 views | 4 replies

• What does it mean when the solution path for Elastic Net is not single-valued?

  Dear JMP Community,   (W10, 64-bit, JMP Pro 15.2.1)   I am running a model to assess the active predictors. I am doing this by using the Autovalidation add-in to generate a Null Factor for my data. I then use the GenReg platform to find estimates for each possible X-factor and then Bootstrap those estimates to get a better assessment of the contributions to the response. I came across a very stran...

  SDF1

  Discussions |

  Feb 15, 2021 12:35 PM

  1445 views | 0 replies