View source: R/skewhypCheckPars.R
skewhypCheckPars | R Documentation |
Given a set of parameters for the skew hyperbolic Student t-distribution, the function checks that the parameters are in the correct range, and that the set has the correct length of 4.
skewhypCheckPars(param)
param |
A numeric vector of proposed parameters for the skew hyperbolic t-distribution. |
The vector param
should be of the form
c(mu,delta,beta,nu)
.
If either delta
or nu
is not greater than zero an error
message is returned.
If the vector param
does not have a length of 4 then an error
message is returned.
A list with components:
case |
Either |
errMessage |
An appropriate error message if an error was found, otherwise an empty string. |
David Scott d.scott@auckland.ac.nz, Fiona Grimson
dskewhyp
skewhypCheckPars(c(0,1,1,1)) #normal
skewhypCheckPars(c(0,0,1,1)) #error
skewhypCheckPars(c(0,1,1,-1)) #error
skewhypCheckPars(c(0,1,1)) #error
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