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-rw-r--r--gnu/packages/cran.scm28
1 files changed, 28 insertions, 0 deletions
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 0c789dd69f..b41e456735 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -11288,3 +11288,31 @@ are linear, logistic and Poisson regression and the Cox Proportional Hazards
model. Cross-validation routines allow optimization of the tuning
parameters.")
(license license:gpl2+)))
+
+(define-public r-zim
+ (package
+ (name "r-zim")
+ (version "1.1.0")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (cran-uri "ZIM" version))
+ (sha256
+ (base32
+ "0scyfjn4ilsvha3x41c3b8bcfi31hlhwm77wn2a8hj5dsvnnmzig"))))
+ (properties `((upstream-name . "ZIM")))
+ (build-system r-build-system)
+ (propagated-inputs `(("r-mass" ,r-mass)))
+ (home-page "https://github.com/biostatstudio/ZIM")
+ (synopsis "Zero-inflated models (ZIM) for count time series with excess zeros")
+ (description
+ "Analyze count time series with excess zeros. Two types of statistical
+models are supported: Markov regression and state-space models. They are also
+known as observation-driven and parameter-driven models respectively in the
+time series literature. The functions used for Markov regression or
+observation-driven models can also be used to fit ordinary regression models
+with independent data under the zero-inflated Poisson (ZIP) or zero-inflated
+negative binomial (ZINB) assumption. The package also contains miscellaneous
+functions to compute density, distribution, quantile, and generate random
+numbers from ZIP and ZINB distributions.")
+ (license license:gpl3)))