Well if you try it with your pocket calculator you will find that e.g. the square root of 4 is exactly the same thing as taking 4 to the power of 0.5. The optimal lambda value you get from Box-Cox is used on your y-value to the power...he just used the sqrt here, could have gone for y^0,5 aswell.
Thank you for detail information, course material, and explanation, keep spreading the knowledge for our better live, have great live
Excellent explanation by example Sir!
Hi why did you choose sqrt transformation for .5 lambda ? what is the logic to choose sqrt transformation?
Well if you try it with your pocket calculator you will find that e.g. the square root of 4 is exactly the same thing as taking 4 to the power of 0.5. The optimal lambda value you get from Box-Cox is used on your y-value to the power...he just used the sqrt here, could have gone for y^0,5 aswell.
HI, Can we use box-cox method even when some values in data are missing?
Yes.