Spatial Estimation and Prediction for Censored/Missing Responses
Overview
It provides functions for estimating parameters in linear spatial models with censored or missing responses using the Expectation-Maximization (EM), Stochastic Approximation EM (SAEM), and Monte Carlo EM (MCEM) algorithms. These methods are widely used to obtain maximum likelihood (ML) estimates in the presence of incomplete data. The EM algorithm computes ML estimates when a closed-form expression for the conditional expectation of the complete-data log-likelihood is available. The MCEM algorithm replaces this expectation with a Monte Carlo approximation based on independent simulations of the missing data. In contrast, the SAEM algorithm decomposes the E-step into simulation and stochastic approximation steps, improving computational efficiency in complex settings. In addition, the package provides standard error estimation based on the Louis method. It also includes functionality for spatial prediction at new locations. References used for this package: Galarza, C. E., Matos, L. A., Castro, L. M., & Lachos, V. H. (2022). Moments of the doubly truncated selection elliptical distributions with emphasis on the unified multivariate skew-t distribution. Journal of Multivariate Analysis, 189, 104944 doi:10.1016/j.jmva.2021.104944; Valeriano, K. A., Galarza, C. E., & Matos, L. A. (2023). Moments and random number generation for the truncated elliptical family of distributions. Statistics and Computing, 33(1), 32 doi:10.1007/s11222-022-10200-4.
- Removed dependency on the 'Ryacas0' package.
From NEWS.md in the release
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- OK12 OK2026-04-25
- NOTE12 OK, 2 NOTE2026-04-22
- ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18
- NOTE10 OK, 2 NOTE2026-04-10
- ERROR9 OK, 2 NOTE, 1 ERROR2026-04-09
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- NOTE6 OK, 2 NOTE2026-04-01
Documentation
- Help pages
- 8
- Examples that run
- 63%5 run in a plain check · 3 only when donttest examples are enabled (R CMD check --as-cran)
- Exported functions with examples
- 100%
- Documented parameters
- 88%
- Return-value docs
- 100%
- Help pages citing references
- 38% with a bibliography file
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- archivedRemoved from CRAN2026-07-10requires archived package 'FuzzyNumbers.Ext.2'
- RR 4.6.0 released · 2026-04-24
- unarchivedReturned to CRAN2026-04-01
- 1.0.02026-03-31 · diff ↗
- archivedRemoved from CRAN2025-12-17requires archived package 'Ryacas0'
- RR 4.5.0 released · 2025-04-11
- RR 4.4.0 released · 2024-04-24
- RR 4.3.0 released · 2023-04-21
- unarchivedReturned to CRAN2022-06-28
- 0.3.02022-06-27 · diff ↗
- archivedRemoved from CRAN2022-05-18check issues were not corrected in time
- RR 4.2.0 released · 2022-04-22
- 0.1.02021-09-21
- RR 4.1.0 released · 2021-05-18
Package metadata
- First published
- 2021-09-21
- Total releases
- 3 / 5 yrs
- License
- GPL (>= 2) OSI
- Minimum R
- ≥ 2.10
- Bundled data
- 0.7 KB / 1 file
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