R Under development (unstable) (2024-10-16 r87241 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> library(POT)
> set.seed(123)
> 
> x <- rgpd(30, 0, 1, 0.2)
> f1 <- fitgpd(x, 0, "med")
> convassess(f1)
Warning message:
In sqrt(diag(var.cov)) : NaNs produced
> str(f1)
List of 21
 $ fitted.values : Named num [1:2] 0.708 0.42
  ..- attr(*, "names")= chr [1:2] "scale" "shape"
 $ std.err       : NULL
 $ std.err.type  : NULL
 $ var.cov       : NULL
 $ fixed         : NULL
 $ param         : Named num [1:2] 0.708 0.42
  ..- attr(*, "names")= chr [1:2] "scale" "shape"
 $ deviance      : NULL
 $ corr          : NULL
 $ convergence   : chr "successful"
 $ counts        : Named num 44
  ..- attr(*, "names")= chr "function"
 $ message       : NULL
 $ threshold     : num [1:30] 0 0 0 0 0 0 0 0 0 0 ...
 $ nat           : int 30
 $ pat           : num 1
 $ data          : num [1:30] 1.4153 0.2436 0.979 0.126 0.0618 ...
 $ exceed        : num [1:30] 1.4153 0.2436 0.979 0.126 0.0618 ...
 $ scale         : Named num 0.708
  ..- attr(*, "names")= chr "shape"
 $ var.thresh    : logi FALSE
 $ est           : chr "MEDIANS"
 $ opt.value     : Named num -6.07e-06
  ..- attr(*, "names")= chr "shape"
 $ threshold.call: chr "0"
 - attr(*, "class")= chr [1:2] "uvpot" "pot"
> f1
Estimator: MEDIANS 

Varying Threshold: FALSE 

  Threshold Call: 0 
    Number Above: 30 
Proportion Above: 1 

Estimates
 scale   shape  
0.7077  0.4202  

Optimization Information
  Convergence: successful 
  Function Evaluations: 44 

> 
> proc.time()
   user  system elapsed 
   0.95    0.12    1.00