Statistics

Source code

ACM: Association for Computing Machinery, the world's first educational and scientific computing society.
StatLib Index
StatLib - Applied Statistics algorithms
Numerical Recipes - Fortran

Time Series Analysis

StatCodes - Time series analysis
Interactive Digital Filter Design
Butterworth / Bessel / Chebyshev Filters

SSA

Multi-Taper Spectral Analysis Methods
SSA-MTM Toolkit

Online Reference Books

Concise Encyclopedia of Mathematics CD-ROM

Miscellaneous

Stata Corporation
Estima Product Information
Welcome to NCSS Statistical Software
Minitab Homepage