Statistics

[jonessas]

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

[PaigeMiller]

You should probably post this in the JMP Communities.

[jonessas]

Can you tell how to get to the JMP community, this is my first time.

[PaigeMiller]

I provided a link to the JMP Community.

[Ksharp · Accepted solution]

KNN model is an unsupervised model . and it has nothing to do with Y/response variable ("Survived" ).
about your Q, K is difficult to decide , my opinion is using Principle Component Analysis to plot a X-Y scatter graph by first two principle component . and Check how many clusters should be divided.
@Rick_SAS wrote a blog about it .