src/language/stats/factor.c \
src/language/stats/flip.c \
src/language/stats/freq.c src/language/stats/freq.h \
+ src/language/stats/friedman.c src/language/stats/friedman.h \
src/language/stats/glm.c \
src/language/stats/kruskal-wallis.c src/language/stats/kruskal-wallis.h \
src/language/stats/npar.c src/language/stats/npar.h \