Nima

but seems that none of them are doing that thing that i have discussed

just submitted https://github.com/montanaflynn/stats/pull/79

honestly im facing this problem in real project because we need to calculate SD in absence of former data and i didnt find such a thing and also such a...

@montanaflynn could you please take a look i think it would be useful to merge it Thanks

@montanaflynn Hi im sorry for tagging you again could you please take a look i think it would be useful to merge it Thanks

@haiodo this is the last correct one