Expert opinion (or judgment) is a body of techniques to
estimate the distribution of a random variable when data is scarce
or unavailable. Opinions on the quantiles of the distribution are
sought from experts in the field and aggregated into a final
estimate. The package supports aggregation by means of the Cooke,
Mendel-Sheridan and predefined weights models.

Modeling without data using expert opinion

Exponential Integral and Incomplete Gamma Function
The exponential integrals E_1(x), E_2(x), E_n(x) and
Ei(x), and the incomplete gamma function G(a, x) defined for
negative values of its first argument. The package also gives easy
access to the underlying C routines through an API; see the package
vignette for details. A test package included in sub-directory
example_API provides an implementation. C routines derived from the
GNU Scientific Library <https://www.gnu.org/software/gsl/>.

c(person("Vincent", "Goulet", role = c("cre", "aut"),
email = "vincent.goulet@act.ulaval.ca"),
person("Gerard", "Jungman", role = "aut",
email = "jungman@lanl.gov",
comment = "Original author of the GSL code"))
Vincent Goulet [cre, aut],
Gerard Jungman [aut] (Original author of the GSL code)

c(person("Vincent", "Goulet", role = c("cre", "aut"),
email = "vincent.goulet@act.ulaval.ca"),
person("Gerard", "Jungman", role = "aut",
email = "jungman@lanl.gov",
comment = "Original GSL code"),
person("Brian", "Gough", role = "aut",
email = "jungman@lanl.gov",
comment = "Original GSL code"),
person("Jeffrey A.", "Ryan", role = "aut",
email = "jeff.a.ryan@gmail.com",
comment = "Package API"),
person("Robert", "Gentleman", role = "aut",
comment = "Part of the R to C interface"),
person("Ross", "Ihaka", role = "aut",
comment = "Part of the R to C interface"),
person(family = "R Core Team", role = "aut",
comment = "Part of the R to C interface"),
person(family = "R Foundation", role = "aut",
comment = "Part of the R to C interface"))
Vincent Goulet [cre, aut],
Gerard Jungman [aut] (Original GSL code),
Brian Gough [aut] (Original GSL code),
Jeffrey A. Ryan [aut] (Package API),
Robert Gentleman [aut] (Part of the R to C interface),
Ross Ihaka [aut] (Part of the R to C interface),
R Core Team [aut] (Part of the R to C interface),
R Foundation [aut] (Part of the R to C interface)