maint: Clean up m-files to follow Octave coding conventions. Try to trim long lines to < 80 chars. Use '##' for single line comments. Use '(...)' around tests for if/elseif/switch/while. Abut cell indexing operator '{' next to variable. Abut array indexing operator '(' next to variable. Use space between negation operator '!' and following expression. Use two newlines between endfunction and start of %!test or %!demo code. Remove unnecessary parens grouping between short-circuit operators. Remove stray extra spaces (typos) between variables and assignment operators. Remove stray extra spaces from ends of lines.

--- a/scripts/statistics/tests/f_test_regression.m	Mon Feb 23 16:42:25 2015 +0000
+++ b/scripts/statistics/tests/f_test_regression.m	Mon Feb 23 14:54:39 2015 -0800
@@ -68,7 +68,7 @@
   [b, v] = ols (y, x);
   diff   = rr * b - r;
   f      = diff' * inv (rr * inv (x' * x) * rr') * diff / (q * v);
-  pval  = 1 - fcdf (f, df_num, df_den);
+  pval   = 1 - fcdf (f, df_num, df_den);
 
   if (nargout == 0)
     printf ("  pval: %g\n", pval);