Monte-Carlo output for mean+-x*sigma?

Stephan,

There may be other ways, but one would be to have an output expression which was something like average(expression ?continuous nil)+5*stddev(expression ?continuous nil) and set the EvalType column to sweeps. Then this would evaluate the average and stddev across the Monte Carlo and give you the limit you want.

If you want anything else, customer support is your friend here.

Andrew

Hi Andrew, good idea, but with this approach I need to create an expression for each existing output, correct? No wildcard support? If so the skill approach looks more reasonable.

Bye Stephan 

Hi Stephan,

Of course, the yield view gives you the sigma-to-target output which will tell you the number of sigma you are from the target, and if that's greater than 5 then you're OK. Similarly, the Cpk column is shown (which essentially shows the same thing, but it's 3 times smaller). I'd forgotten, but you can even get the mean +/- sigma values shown and you can set the k-sigma (this was added in IC6.1.8 ISR6). To do this, use the "configure what is shown" (which is also the adexl.gui yieldViewShowDefault cdsenv) as shown:

(note that Mean +-kSigma and Sigma to Target aren't shown by default), and then using Right Mouse over the mean +/- 3 sigma column, you can select the sigma:

If you click "set k Sigma" you can type in 5. Then I get:

There's no wildcard for the output expression (wouldn't really make sense because you need multiple outputs). I think this does what you want though.

Andrew

in yieldViewShowDefault variable can i choose the order of the columns? also can i set the default k-sigma i want to see?

Hi Antonio,

This is a good hint, I have currently this in cdsenv:

adexl.gui    yieldViewShowDefault    string    "\"Min\" \"Target\" \"Max\" \"Mean\" \"Std Dev\" \"Cpk\" \"Errors\" \"User-Defined Columns\""

Which setting I need to see e.g. mean +- 5 sigma??

Bye Stephan

The default availability of Mean +-kSigma can be enabled using:

envSetVal("adexl.gui" "yieldViewShowDefault" 'string "\"Min\" \"Target\" \"Max\" \"Mean\" \"Std Dev\" \"Cpk\" \"Mean +-kSigma\" \"Errors\" \"User-Defined Columns\"")

The details are in my reply earlier in this thread. There isn't yet a cdsenv variable to set the default "k" value for k-sigma - you have to do it interactively. in IC6.1.8/ICADVM20.1. ISR27 though there will be a new cdsenv variable:

maestro.gui yieldViewKSigma string "3"

which will then allow this to be set. ISR27 is scheduled for mid-August 2022.

Andrew