R Under development (unstable) (2024-07-10 r86888 ucrt) -- "Unsuffered Consequences"
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> library(fitdistrplus)
Loading required package: MASS
Loading required package: survival
> library(actuar)

Attaching package: 'actuar'

The following objects are masked from 'package:stats':

    sd, var

The following object is masked from 'package:grDevices':

    cm

> 
> set.seed(1234)
> 
> n <- 1e3
> x <- rzmpois(n, 2, 1/2)
> 
> fitdistrplus:::startarg_discrete_actuar_family(x, "zmpois")
$p0
[1] 0.469

$lambda
[1] 0.65844

> fitdist(x, "zmpois")
Fitting of the distribution ' zmpois ' by maximum likelihood 
Parameters:
        estimate Std. Error
p0     0.4690402 0.01578106
lambda 2.0281379 0.06920256
> 
> x <- rzmnbinom(n, 2, 1/2, 1/3)
> fitdistrplus:::startarg_discrete_actuar_family(x, "zmnbinom")
$p0
[1] 0.315

$size
[1] 1.760338

$prob
[1] 0.3390655

> fitdist(x, "zmnbinom")
Fitting of the distribution ' zmnbinom ' by maximum likelihood 
Parameters:
      estimate Std. Error
p0   0.3150028 0.01468924
size 2.5000134 0.53775110
prob 0.5521241 0.04573847
> 
> x <- rzmgeom(n, 1/2, 1/3)
> fitdistrplus:::startarg_discrete_actuar_family(x, "zmgeom")
$p0
[1] 0.336

$prob
[1] 0.2867012

> fitdist(x, "zmgeom")
Fitting of the distribution ' zmgeom ' by maximum likelihood 
Parameters:
      estimate Std. Error
p0   0.3359667 0.01493584
prob 0.5045246 0.01378234
> 
> 
> x <- rzmbinom(n, 30, 1/2, 1/3)
> 
> fitdistrplus:::startarg_discrete_actuar_family(x, "zmbinom")
$p0
[1] 0.336

$size
[1] 22

$prob
[1] 0.664

> fitdist(x, "zmbinom", lower=0)
Fitting of the distribution ' zmbinom ' by maximum likelihood 
Parameters:
      estimate
p0    0.336000
size 22.000000
prob  0.684351
> 
> 
> x <- rpoisinvgauss(n, mean = 10, dispersion = 2)
> 
> fitdistrplus:::startarg_discrete_actuar_family(x, "poisinvgauss")
$mean
[1] 0.371

$dispersion
[1] 4.574434

> fitdist(x, "poisinvgauss", lower=0)
Fitting of the distribution ' poisinvgauss ' by maximum likelihood 
Parameters:
            estimate  Std. Error
mean       11.248984 0.002924037
dispersion  1.897539 0.061510444
> 
> 
> proc.time()
   user  system elapsed 
   1.71    0.35    2.01