NF - added signal-to-noise function to stats
NF - added signal-to-noise function to stats

tbabej/astropy,joergdietrich/astropy,saimn/astropy,astropy/astropy,astropy/astropy,dhomeier/astropy,mhvk/astropy,tbabej/astropy,AustereCuriosity/astropy,bsipocz/astropy,larrybradley/astropy,lpsinger/astropy,dhomeier/astropy,mhvk/astropy,tbabej/astropy,larrybradley/astropy,dhomeier/astropy,tbabej/astropy,MSeifert04/astropy,kelle/astropy,MSeifert04/astropy,tbabej/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,funbaker/astropy,stargaser/astropy,astropy/astropy,StuartLittlefair/astropy,DougBurke/astropy,stargaser/astropy,MSeifert04/astropy,StuartLittlefair/astropy,bsipocz/astropy,funbaker/astropy,pllim/astropy,AustereCuriosity/astropy,joergdietrich/astropy,DougBurke/astropy,stargaser/astropy,lpsinger/astropy,pllim/astropy,pllim/astropy,funbaker/astropy,astropy/astropy,AustereCuriosity/astropy,lpsinger/astropy,bsipocz/astropy,larrybradley/astropy,saimn/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,saimn/astropy,mhvk/astropy,joergdietrich/astropy,astropy/astropy,pllim/astropy,AustereCuriosity/astropy,stargaser/astropy,saimn/astropy,StuartLittlefair/astropy,pllim/astropy,kelle/astropy,MSeifert04/astropy,dhomeier/astropy,mhvk/astropy,kelle/astropy,joergdietrich/astropy,larrybradley/astropy,larrybradley/astropy,kelle/astropy,saimn/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,AustereCuriosity/astropy,mhvk/astropy,lpsinger/astropy,StuartLittlefair/astropy,funbaker/astropy,aleksandr-bakanov/astropy,DougBurke/astropy,kelle/astropy,DougBurke/astropy,lpsinger/astropy,StuartLittlefair/astropy