topic Re: STATISTIC PROBLEM in Discussions

STATISTIC PROBLEM

jonessas — Sat, 10 Jun 2023 20:43:58 GMT

Fit a KNN model to the Titanic Passengers dataset where "Survived" is the response and all other variables (except Name) are the predictor (X) variables. Set the validation to the validation column. Set the K to 15, and the random seed to 125. Based on the results, what is the optimal K (enter the numerical answer, e.g., 3)

Titanic Passengers" JMP dataset

Re: STATISTIC PROBLEM

Thierry_S — Tue, 23 Mar 2021 16:17:41 GMT

Hi,
Forgive me to ask but this looks like a homework assignment. If it is, it might be best to try to figure out by yourself through exploration of the KNN platform in JMP.
One point though, when you enter all predictors listed in the table, the KNN platform takes a long time to compute and also, some of the columns a very sparsely populated leaving most passenger with "empty" values. Hence, it might be valuable to experiment with simpler models that only include key variables such as Age, Sex, and Passenger Class.
Best,
TS

Re: STATISTIC PROBLEM

txnelson — Tue, 23 Mar 2021 16:36:40 GMT

Is there a question you want to ask? Are you asking how to open the Titanic Passengers data table? Or how to access the K Nearest Neighbor Platform to run the analysis?
The data table can be accessed under the Help pull down menu
Help=>Sample Data Library
The Nearest Neighbor Platform is available under the Analyze pull down menu
Analyze=>Predictive Modeling=>K Nearest Neighbors