1999-07-08  Jukka-Pekka Iivonen  <iivonen@iki.fi>

	* doc/C/analysis-tools.sgml: New file. Added documentation for the
 	following analysis tools: Correlation, Covariance, Descriptive
 	Statistics, Random Number Generation, Sampling, and F-Test.

	* src/dialog-analysis-tools.c: Added some default parameters for
 	the random number generation tool.

	* src/dialog-analysis-tools.c, src/analysis-tools.c: Started the
 	implementation of regression tool.  Feel free to fill in the rest
 	of the calculations if you are familiar with the regression
 	statistics.