These documents are written by staff at HRS to record discussions with clients on points of data analysis or as presentations to conferences.
Using CHAID for Classification Problems
Ray presented a paper on "Using CHAID for Classification Problems" at the NZ Statistics Association Conference. Click here to download a pdf copy to view his paper.
Forecasting Paper
Ray attended the Forecasting Forum in Wellington and presented "Building Realistic Forecasting Models". Click here for more information about the conference and Ray's presentation.
Statistical Significance
This is a summary of the text of a talk that Ray gave to an audience that needed to be convinced of the need to use statistical testing.
Missing values
This is a discussion on why missing values are important and hints on dealing with them.
