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degross  

Density Estimation from GROuped Summary Statistics
View on CRAN: Click here


Download and install degross package within the R console
Install from CRAN:
install.packages("degross")

Install from Github:
library("remotes")
install_github("cran/degross")

Install by package version:
library("remotes")
install_version("degross", "0.9.0")



Attach the package and use:
library("degross")
Maintained by
Philippe Lambert
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2021-08-04
Latest Update: 2021-08-04
Description:
Estimation of a density from grouped (tabulated) summary statistics evaluated in each of the big bins (or classes) partitioning the support of the variable. These statistics include class frequencies and central moments of order one up to four. The log-density is modelled using a linear combination of penalised B-splines. The multinomial log-likelihood involving the frequencies adds up to a roughness penalty based on the differences in the coefficients of neighbouring B-splines and the log of a root-n approximation of the sampling density of the observed vector of central moments in each class. The so-obtained penalized log-likelihood is maximized using the EM algorithm to get an estimate of the spline parameters and, consequently, of the variable density and related quantities such as quantiles, see Lambert, P. (2021) for details.
How to cite:
Philippe Lambert (2021). degross: Density Estimation from GROuped Summary Statistics. R package version 0.9.0, https://cran.r-project.org/web/packages/degross. Accessed 26 Aug. 2026.
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