HyperNiche Specifications

Model Fitting
Data Types
Data Modifications
Data Formats
GIS Functionality
Graph Examples
Help System
System Requirements

HyperNiche Interface
HyperNiche Graphing Interface


Model Fitting
Nonparametric Multiplicative Regression
  • Local mean - uniform weights in window
  • Local mean - Gaussian weights
  • Local linear - Gaussian weights
Least-squares Multiple Linear Regression
  • Direct entry
  • Backwards elimination
  • Cross-validation
  • Monte-carlo test
Overfitting and Parsimony Controls
  • Built-in leave-one-out cross validation
  • Minimum average neighborhood size
  • Data:predictor ratio
  • Improvement criterion
  • Monte Carlo test
  • GIS application - input of predictors grids, output of response grids
  • Predict responses for new cases
  • Estimate responses to categorical variables
Data Types
Response Variables
  • presence/absence
  • quantitative
Predictor Variables
  • quantitative
  • categorical
Data Modifications
  • Power transform
  • Log
  • Arcsine squareroot
  • Delete rows or columns
  • Multiply or add a constant
  • Shuffle within columns
  • Matrix editing
Data Formats
  • *.wk1
    (easy import/export from Excel and most statistical software)
  • File structure compatible with PC-ORD
  • Import/export *.xls, *.xlsx, *.csv format
  • GIS grid file (*.asc) input/output
GIS Functionality
  • Read multiple input grids
  • Write response grids for import to ESRI software
  • Scatterplots of observations, estimates, and residuals
  • Simple scatterplots among all pairs of variables
  • Matrix scatterplots
  • Distributions
  • Boxplots
  • 2D response curves
  • 3D response surfaces
  • 3D contour plots
  • 3D rotation
  • Save as Windows metafile or paste into Office document
  • Color or black/white
Graph Examples
Response Points | Response Curves
Contour | Projection | Slices
Scatterplot | Scatterplot Matrix
Distributions | Boxplot

Help System
  • Context sensitive
  • Detailed and extensive
  • Companion pdf document explaining the rationale and detailing the underlying math
  • 30 GIS input files (one file for each predictor variable)
  • 100 GIS output files (one file for each species)
  • 246-character file names
  • 1000 species
  • 500 habitat variables in the model at once (more can be included as potential variables)
  • 32,000 sample units (rows)
System Requirements
  • Operating System: Windows 98, NT, ME, 2000, XP, Vista, 7, 8, and 10
  • 80486 or higher CPU (including Pentium 4, Athlon, Celeron, etc.)
  • 8 MB RAM (more RAM means ability to analyze larger data sets)
  • 6 MB of available hard disk space
  • Guidelines for Network Installation of HyperNiche