{
  "_id": "6a106252acfb0bcc41ca7f7f",
  "Package": "SSLfmm",
  "Type": "Package",
  "Title": "Semi-Supervised Learning under a Mixed-Missingness Mechanism in\nFinite Mixture Models",
  "Version": "0.1.0",
  "Authors@R": "c(person(\"Jinran\", \"Wu\", email = \"jinran.wu@uq.edu.au\", role = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0002-2388-3614\")),person(\"Geoffrey J.\", \"McLachlan\", email = \"g.mclachlan@uq.edu.au\", role = \"aut\", comment = c(ORCID = \"0000-0002-5921-3145\")))",
  "Maintainer": "Jinran Wu <jinran.wu@uq.edu.au>",
  "Description": "Implements a semi-supervised learning framework for finite\nmixture models under a mixed-missingness mechanism. The\napproach models both missing completely at random (MCAR) and\nentropy-based missing at random (MAR) processes using a\nlogistic–entropy formulation. Estimation is carried out via an\nExpectation–-Conditional Maximisation (ECM) algorithm with\nrobust initialisation routines for stable convergence. The\nmethodology relates to the statistical perspective and\ninformative missingness behaviour discussed in Ahfock and\nMcLachlan (2020) <doi:10.1007/s11222-020-09971-5> and Ahfock\nand McLachlan (2023) <doi:10.1016/j.ecosta.2022.03.007>. The\npackage provides functions for data simulation, model\nestimation, prediction, and theoretical Bayes error evaluation\nfor analysing partially labelled data under a mixed-missingness\nmechanism.",
  "License": "GPL-3",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.3",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-08 07:42:32 UTC",
    "User": "root"
  },
  "Author": "Jinran Wu [aut, cre] (ORCID:\n<https://orcid.org/0000-0002-2388-3614>), Geoffrey J. McLachlan\n[aut] (ORCID: <https://orcid.org/0000-0002-5921-3145>)",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2025-12-09 16:30:28 UTC",
  "RemoteUrl": "https://github.com/cran/SSLfmm",
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    "compute_d2",
    "EM_FMM_SemiSupervised",
    "EM_FMM_SemiSupervised_Complete_Initial",
    "EM_FMM_SemiSupervised_Initial",
    "error_beta_classification",
    "get_clusterprobs",
    "get_entropy",
    "initialestimate",
    "logsumexp",
    "neg_loglik",
    "normalise_logprob",
    "pack_theta",
    "rmix",
    "simulate_mixed_missingness",
    "unpack_theta"
  ],
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    {
      "page": "bayesclassifier",
      "title": "Bayes' Rule Classifier",
      "topics": [
        "bayesclassifier"
      ]
    },
    {
      "page": "compute_d2",
      "title": "Squared Discriminant Score for Two-Group LDA (Equal Covariance)",
      "topics": [
        "compute_d2"
      ]
    },
    {
      "page": "EM_FMM_SemiSupervised",
      "title": "EM for Semi-Supervised FMM with a Mixed-Missingness Mechanism (MCAR + entropy-based MAR)",
      "topics": [
        "EM_FMM_SemiSupervised"
      ]
    },
    {
      "page": "EM_FMM_SemiSupervised_Complete_Initial",
      "title": "Complete-Data Warm-Up Initialization for Semi-Supervised FMM with a Mixed-Missingness Mechanism",
      "topics": [
        "EM_FMM_SemiSupervised_Complete_Initial"
      ]
    },
    {
      "page": "EM_FMM_SemiSupervised_Initial",
      "title": "Quick Initializer for alpha, xi, and Mixture Parameters",
      "topics": [
        "EM_FMM_SemiSupervised_Initial"
      ]
    },
    {
      "page": "error_beta_classification",
      "title": "Compute Theoretical Bayes' Error for a Binary Gaussian Mixture",
      "topics": [
        "error_beta_classification"
      ]
    },
    {
      "page": "get_clusterprobs",
      "title": "Posterior Cluster Probabilities for a Gaussian Mixture",
      "topics": [
        "get_clusterprobs"
      ]
    },
    {
      "page": "get_entropy",
      "title": "Per-Row Entropy of Posterior Cluster Probabilities",
      "topics": [
        "get_entropy"
      ]
    },
    {
      "page": "initialestimate",
      "title": "Initialize Parameters for a FMM from Labeled Subset",
      "topics": [
        "initialestimate"
      ]
    },
    {
      "page": "logsumexp",
      "title": "Numerically Stable Log-Sum-Exp",
      "topics": [
        "logsumexp"
      ]
    },
    {
      "page": "neg_loglik",
      "title": "Negative Log-Likelihood for Semi-Supervised FMM with a Mixed-Missingness Mechanism",
      "topics": [
        "neg_loglik"
      ]
    },
    {
      "page": "normalise_logprob",
      "title": "Normalise Log-Probabilities",
      "topics": [
        "normalise_logprob"
      ]
    },
    {
      "page": "pack_theta",
      "title": "Pack FMM Parameters into a Vector",
      "topics": [
        "pack_theta"
      ]
    },
    {
      "page": "rmix",
      "title": "Draw from a Gaussian Mixture Model",
      "topics": [
        "rmix"
      ]
    },
    {
      "page": "simulate_mixed_missingness",
      "title": "Simulate a Gaussian Mixture Dataset with a Mixed-Missingness Mechanism (MAR + MCAR)",
      "topics": [
        "simulate_mixed_missingness"
      ]
    },
    {
      "page": "unpack_theta",
      "title": "Unpack FMM Parameter Vector",
      "topics": [
        "unpack_theta"
      ]
    }
  ],
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