1999-08-01  Morten Welinder  <terra@diku.dk>

	* src/fn-stat.c (gnumeric_covar, gnumeric_correl): Simplify using
 	range functions.

	* src/workbook.c (file_open_cmd): Plug leak.

	* src/mathfunc.c (range_covar, range_correl_pop,
 	range_correl_est): New functions.

	* src/collect.c (collect_floats_value, float_range_function2): New
 	functions.