| is.pdq4 | R Documentation | 
The distribution parameter object returned by functions of lmomco such as by parpdq4 are typed by an attribute type. This function checks that type is pdq4 for the Polynomial Density-Quantile4 distribution.
is.pdq4(para)
para | 
 A parameter   | 
TRUE | 
 If the   | 
FALSE | 
 If the   | 
W.H. Asquith
parpdq4 
para <- parpdq4(lmoms(c(46, 70, 59, 36, 71, 48, 46, 63, 35, 52)))
if(is.pdq4(para) == TRUE) {
  Q <- quapdq4(0.5, para)
}
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