genie

Main

Forum

Formula of iStdDev on EMA SMMA LWMA

hi. i want to calculate iStdDev on excel, so i tried to compare iStdDev value and my calculated value. at first, simply period=2 and increases 3, 4... SMA is no problem, but LWMA is not equal. (there is a correlation) Maybe EMA and SMMA are different too. so I wondered why. *calculation accuracy is