Jesús M. Castagnetto

The code in this project is incomplete and buggy in parts. It has been superseded by the math packages I wrote for PEAR (pear.php.net). Use those instead (see the Math section of the packages list). -- Jesus M. Castagnetto

Package to calculate statistical index numbers. An index number is "(a) statistic which assigns a single number to several individual statistics in order to quantify trends." (From MathWorld's "Index Number"). This package allows the calculation of some of the better known index numbers: ... [More] Bowley index, Fisher index, Geometric mean index, Harmonic mean index, Laspeyres' index, Marshall-Edgeworth index, Mitchell index, Paasche's index, and Walsh index. This is old code I wrote circa 2005. [Less]