Error when using fitdist function in R

Hi

where is function fitdist from? Do you by chance mean fitdistr from MASS package?
What is result of str(k)?

Without these questions answered you hardly get any useful answer.

Regards
Petr
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Paul Bernal
Sent: Tuesday, April 09, 2013 11:19 PM
To: r-help at r-project.org
Subject: [R] Error when using fitdist function in R

Hello everyone,

I  was trying to do some distribution fitting with a numerical field
called Tolls. The sample size = 999 rows.

Basically I assigned the Toll data to a new variable K by doing:
k<-dtest$Toll

After that, tried to fit a gamma distribution by doing: fitG<-
fitdist(k,
"gamma")

Then the following messages showed (oh and I checked for empty rows
before doing this):

Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
Warning in dgamma(c(363328L, 376216L, 367032L, 314826L, 311892L,
313340L,  :
  NaNs produced
[1] "Error in optim(par = vstart, fn = fnobj, fix.arg = fix.arg, obs =
data,  : \n  non-finite finite-difference value [2]\n"
attr(,"class")
[1] "try-error"
attr(,"condition")
<simpleError in optim(par = vstart, fn = fnobj, fix.arg = fix.arg, obs
=
data,     ddistnam = ddistname, hessian = TRUE, method = meth, lower =
lower,     upper = upper, ...): non-finite finite-difference value [2]>
Error in fitdist(k, "gamma") :
  the function mle failed to estimate the parameters,
                with the error code 100

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Error when using fitdist function in R

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