topic Re: Simulate responses within defined range in Discussions

Simulate responses within defined range

acid1c — Sat, 25 Jul 2015 16:21:28 GMT

I have been using the RANDBETWEEN(min,max) function in excel to generate random simulated responses which I paste into the matrix.

Rather than using the model coefficients to simulate the response variables, can JMP generate "random" numbers within a defined range? What is the drawback of using this method (asides from the obvious - the random values not fitting the model)?

Thanks!

Re: Simulate responses within defined range

louv — Wed, 19 Oct 2016 00:01:42 GMT

acid1c,

Will this do the trick for you?

Re: Simulate responses within defined range

acid1c — Mon, 27 Jul 2015 11:02:22 GMT

Thank you for pointing me in this direction, but I found a better solution. Random Normal is generating numbers with a defined mean and standard deviation. A better choice is to use Random Uniform which generates numbers within a defined min and max range:

Right click on column > Formula > Random > Random Uniform > Random Uniform(min,max)

Re: Simulate responses within defined range

Dan_Obermiller — Mon, 27 Jul 2015 14:00:18 GMT

Random uniform does work well with a defined min and max, but it does not have a peaked shape like a normal distribution. If you want a peaked shape, use the Triangular distribution. It has a defined min and max with a mode or peak.