Great, thanks. You can also use a neat AVERAGEIFS function in your mini matrix at 17:20

Very nice example. Thanks for sharing.

Well done!

Thanks for your video. I would like to design an experiment with 3 factors but each factors have many levels, not necessarily with the same number. How can I do that?

@ramdasmenon0908

2 жыл бұрын

The simplest way it to use the generalized factorial option in Minitab. The R Programming Language also has several DOE packages that you can use. You can do this in Excel also, though it will take some doing.

why the factors ABCD has 1 and -1 factor, usually it is 0,1 and -1..?

@adrianvega9946

4 жыл бұрын

Because not using centerpoints. Using a centerpoint is to find out if there is a curvature. And if we intend to use linear model then isn't needed.

to find out quantile, why it was first 1/20 then 1/10+(1/20) then in residuals it was 1/32 and 1/16+(1/32)? reason for selecting factor 20 and 32?

@Underthelab

6 жыл бұрын

hey there, thank you for your useful video, kindly could you assist in the question by Rose. Your assistance is appreciated

@vincewest5790

6 жыл бұрын

In looking at the effects, there were 10 effects, four first order effects and 6 second order effects. Normally distributed these should fall into 10 equally divided quantiles, hence the 1/10 increment. The first quantile being 0-10, the mid point is 5 percent or 1/20, and the next is 15 percent, or 1/10 + 1/20, and so on. For the residuals, there were 16 points that if normally distributed should be in 16 equal quantiles. Using similar logic the first midpoint is at 1/32, and the second quantile midpoint is at 1/16 + 1/32. Hence these numbers are just based on the number of normally distributed points to evaluate.

@svaranasi542

5 жыл бұрын

@@vincewest5790 This is very great inf, kindly please tell abt the calc

@chandrashekharb8073

5 жыл бұрын

@@vincewest5790 But she sorted the effect list from smallest to largest, why didnt she do the same for the quantiles?

@vincewest5790

5 жыл бұрын

Chandrashekhar B, I don’t remember the video exactly but you have to sort the effects so you can put the into quantiles which are ordered from smallest to largest by definition

why are the beta coefficients divided by 2 ?

@jessetello7620

22 күн бұрын

im in her class. she never explained it.