wbllike
              Negative log-likelihood for the Weibull distribution.
 nlogL = wbllike (params, data) returns the negative
 log-likelihood of the data in x corresponding to the Weibull
 distribution with (1) scale parameter lambda and (2) shape parameter
 k given in the two-element vector params.
 [nlogL, acov] = wbllike (params, data) also
 returns the inverse of Fisher’s information matrix, acov.  If the input
 parameter values in params are the maximum likelihood estimates, the
 diagonal elements of acov are their asymptotic variances.  acov
 is based on the observed Fisher’s information, not the expected information.
 […] = wbllike (params, data, censor) accepts a
 boolean vector, censor, of the same size as x with 1s for
 observations that are right-censored and 0s for observations that are
 observed exactly.  By default, or if left empty,
 censor = zeros (size (x)).
 […] = wbllike (params, data, censor,
 freq) accepts a frequency vector, freq, of the same size as
 x.  freq typically contains integer frequencies for the
 corresponding elements in x, but may contain any non-integer
 non-negative values.  By default, or if left empty,
 freq = ones (size (x)).
Further information about the Weibull distribution can be found at https://en.wikipedia.org/wiki/Weibull_distribution
See also: wblcdf, wblinv, wblpdf, wblrnd, wblfit, wblstat
Source Code: wbllike