Dear all,
This question should be very easy for the experienced.
For a standardized Johnson SB with parameters (xi,l,g,d) it holds that:
Y = (X - xi) / l
So that a unit normal Z can be represented as:
Z = g + d * logit Y
In Stata terms:
Y = invlogit((Z - g)/d)
X = xi + l * invlogit((Z - g)/d)
Hence, to generate the SB:
gen SB = xi + l * invlogit((invnormal(uniform()) - g)/d)
Now, to run a ksmirnov test on the normal cumulative density:
sum X
ksmirnov X = normal((X-r(mean))/r(sd))
My question is how do you run the equivalent ksmirnov on the cumulative
SB?
I thought that I got the cumulative right but now I am not sure.
many thanks, Demetris
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