Hello,
I was trying to fit a Johnson curve by first figuring out the parameter
estimates using JohosnFit of a vector by a group ID using the aggregate
function. I.E.
aggregate(x, by = list(ID), JohnsonFit)
where x is the variable I am trying to perform JohnsonFit on. It is a
continuous random variable. However, I keep getting the following error:
Error in JohnsonFit(x) :
Unbounded solution intermediate values out of range
When I run the fit individually by group ID, it works fine. However I do
not want to do that manually as there are a large number of groups that
would be too laborious to do so.
If possible, could you shed some light on this error?
Thanks!
--
Regards,
Shiner Yang
B. Sc Statistics & Economics, Commerce Minor | UBC
Co-President, Science Co-op Students Association
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