=============================================================================
  COVERAGE AUDIT  —  2026-04-23 18:32:14 CEST
=============================================================================

cases total:        440
  executable:       400
  unexecutable:     40  (covariance-class / parametric / deferred)

feature values defined:  161
  tagged (any case):     131
  fixture-backed:        145
forced pairs:            15
  tagged:                15
  fixture-backed:        14
fixtures:                302 / 400 executable cases

-----------------------------------------------------------------------------
  (a) PER-AXIS COVERAGE
-----------------------------------------------------------------------------

### [shared]
  axis: var_type                  fx=5/8  tagged=0/8
      shared.var_type.numeric                             n=0    fx=245
      shared.var_type.integer                             n=0    fx=191
      shared.var_type.logical                             n=0    fx=3  
      shared.var_type.character                           n=0    fx=0    [MISSING]
      shared.var_type.factor                              n=0    fx=87 
      shared.var_type.ordered                             n=0    fx=0    [MISSING]
      shared.var_type.date                                n=0    fx=0    [MISSING]
      shared.var_type.matrix_column                       n=0    fx=18 
  axis: factor_cardinality        fx=4/5  tagged=0/5
      shared.factor_cardinality.two_level                 n=0    fx=29 
      shared.factor_cardinality.balanced_3_5              n=0    fx=60 
      shared.factor_cardinality.many_level                n=0    fx=9  
      shared.factor_cardinality.singleton                 n=0    fx=1  
      shared.factor_cardinality.unused_level              n=0    fx=0    [MISSING]
  axis: na_policy                 fx=1/4  tagged=0/4
      shared.na_policy.omit                               n=0    fx=5  
      shared.na_policy.exclude                            n=0    fx=0    [MISSING]
      shared.na_policy.fail                               n=0    fx=0    [MISSING]
      shared.na_policy.pass                               n=0    fx=0    [MISSING]
  axis: rank                      fx=4/4  tagged=0/4
      shared.rank.full                                    n=0    fx=291
      shared.rank.aliased_cols                            n=0    fx=9  
      shared.rank.empty_cells                             n=0    fx=9  
      shared.rank.perfect_fit                             n=0    fx=1  
  axis: response_shape            fx=3/4  tagged=3/4
      shared.response_shape.univariate                    n=372  fx=286
      shared.response_shape.cbind                         n=12   fx=7  
      shared.response_shape.matrix                        n=0    fx=0    [MISSING]
      shared.response_shape.transformed                   n=5    fx=3  

### [wr]
  axis: op                        fx=11/11  tagged=11/11
      wr.op.plus                                          n=186  fx=139
      wr.op.minus                                         n=5    fx=5  
      wr.op.star                                          n=40   fx=31 
      wr.op.colon                                         n=5    fx=5  
      wr.op.slash                                         n=5    fx=2  
      wr.op.power                                         n=4    fx=4  
      wr.op.power3                                        n=1    fx=1  
      wr.op.in_op                                         n=1    fx=1  
      wr.op.dot                                           n=9    fx=8  
      wr.op.dot_minus                                     n=1    fx=1  
      wr.op.parens                                        n=1    fx=1  
  axis: intercept                 fx=6/6  tagged=6/6
      wr.intercept.default                                n=205  fx=159
      wr.intercept.minus_one                              n=23   fx=8  
      wr.intercept.plus_zero                              n=1    fx=1  
      wr.intercept.leading_zero                           n=2    fx=2  
      wr.intercept.explicit_one                           n=1    fx=1  
      wr.intercept.only_intercept                         n=138  fx=101
  axis: transform                 fx=20/20  tagged=20/20
      wr.transform.identity                               n=182  fx=130
      wr.transform.I_square                               n=15   fx=15 
      wr.transform.I_combine                              n=1    fx=1  
      wr.transform.I_product                              n=2    fx=2  
      wr.transform.log                                    n=6    fx=2  
      wr.transform.log1p                                  n=1    fx=1  
      wr.transform.exp                                    n=1    fx=1  
      wr.transform.sqrt                                   n=1    fx=1  
      wr.transform.sin_cos                                n=2    fx=2  
      wr.transform.poly_orth                              n=5    fx=5  
      wr.transform.poly_raw                               n=2    fx=2  
      wr.transform.bs                                     n=2    fx=2  
      wr.transform.bs_degree                              n=1    fx=1  
      wr.transform.ns                                     n=1    fx=1  
      wr.transform.scale                                  n=2    fx=2  
      wr.transform.cut                                    n=2    fx=2  
      wr.transform.offset                                 n=1    fx=1  
      wr.transform.inline_logical                         n=1    fx=1  
      wr.transform.asis_factor                            n=14   fx=13 
      wr.transform.reorder_factor                         n=1    fx=1  
  axis: contrast                  fx=6/7  tagged=6/7
      wr.contrast.treatment                               n=2    fx=2  
      wr.contrast.sum                                     n=2    fx=2  
      wr.contrast.helmert                                 n=1    fx=1  
      wr.contrast.poly                                    n=2    fx=2  
      wr.contrast.sas                                     n=1    fx=1  
      wr.contrast.user_per_factor                         n=0    fx=0    [MISSING]
      wr.contrast.C_wrapper                               n=2    fx=2  
  axis: interaction               fx=9/9  tagged=9/9
      wr.interaction.num_num                              n=40   fx=29 
      wr.interaction.num_factor                           n=37   fx=28 
      wr.interaction.factor_factor                        n=5    fx=5  
      wr.interaction.three_way                            n=6    fx=4  
      wr.interaction.four_way                             n=1    fx=1  
      wr.interaction.crossed_expand                       n=4    fx=4  
      wr.interaction.nested                               n=5    fx=2  
      wr.interaction.transform_in_int                     n=8    fx=8  
      wr.interaction.I_in_int                             n=1    fx=1  
  axis: edge                      fx=7/10  tagged=7/10
      wr.edge.dup_term                                    n=1    fx=1  
      wr.edge.subtract_absent                             n=1    fx=1  
      wr.edge.subtract_main                               n=1    fx=1  
      wr.edge.subtract_inter                              n=1    fx=1  
      wr.edge.subtract_all                                n=1    fx=1  
      wr.edge.single_row                                  n=0    fx=0    [MISSING]
      wr.edge.single_col_X                                n=140  fx=102
      wr.edge.factor_as_y                                 n=0    fx=0    [MISSING]
      wr.edge.interaction_only                            n=3    fx=3  
      wr.edge.tilde_in_arg                                n=0    fx=0    [MISSING]

### [lme4]
  axis: re_spec                   fx=11/11  tagged=11/11
      lme4.re_spec.intercept_only                         n=38   fx=31 
      lme4.re_spec.slope_only                             n=5    fx=4  
      lme4.re_spec.corr_slope                             n=8    fx=6  
      lme4.re_spec.corr_slope_expl                        n=1    fx=1  
      lme4.re_spec.uncorr_slope                           n=2    fx=2  
      lme4.re_spec.multi_corr                             n=1    fx=1  
      lme4.re_spec.multi_uncorr                           n=1    fx=1  
      lme4.re_spec.factor_slope                           n=1    fx=1  
      lme4.re_spec.factor_uncorr                          n=1    fx=1  
      lme4.re_spec.transform_slope                        n=2    fx=2  
      lme4.re_spec.no_intercept                           n=1    fx=1  
  axis: grouping                  fx=6/6  tagged=6/6
      lme4.grouping.single                                n=44   fx=35 
      lme4.grouping.crossed                               n=10   fx=9  
      lme4.grouping.nested_slash                          n=2    fx=2  
      lme4.grouping.interaction_col                       n=7    fx=7  
      lme4.grouping.partial_crossed                       n=1    fx=1  
      lme4.grouping.two_groups_same                       n=4    fx=3  
  axis: mixing                    fx=5/6  tagged=5/6
      lme4.mixing.fe_only                                 n=0    fx=0    [MISSING]
      lme4.mixing.re_only                                 n=12   fx=11 
      lme4.mixing.fe_plus_re                              n=39   fx=31 
      lme4.mixing.slope_also_fe                           n=4    fx=4  
      lme4.mixing.slope_not_fe                            n=1    fx=1  
      lme4.mixing.nested_fixed                            n=1    fx=1  
  axis: edge_lme4                 fx=6/8  tagged=6/8
      lme4.edge_lme4.double_bar_factor                    n=1    fx=1  
      lme4.edge_lme4.double_bar_multi                     n=1    fx=1  
      lme4.edge_lme4.slash_with_slope                     n=1    fx=1  
      lme4.edge_lme4.re_on_coerced                        n=0    fx=0    [MISSING]
      lme4.edge_lme4.singular_fit                         n=1    fx=1  
      lme4.edge_lme4.interaction_in_re                    n=1    fx=1  
      lme4.edge_lme4.transform_group                      n=0    fx=0    [MISSING]
      lme4.edge_lme4.complex_re                           n=1    fx=1  

### [mgcv]
  axis: bs                        fx=12/12  tagged=12/12
      mgcv.bs.tp                                          n=113  fx=80 
      mgcv.bs.ts                                          n=3    fx=1  
      mgcv.bs.cr                                          n=13   fx=10 
      mgcv.bs.cs                                          n=5    fx=1  
      mgcv.bs.cc                                          n=5    fx=5  
      mgcv.bs.ps                                          n=4    fx=4  
      mgcv.bs.cp                                          n=2    fx=2  
      mgcv.bs.re                                          n=10   fx=6  
      mgcv.bs.fs                                          n=4    fx=3  
      mgcv.bs.gp                                          n=3    fx=3  
      mgcv.bs.ad                                          n=3    fx=3  
      mgcv.bs.sz                                          n=3    fx=2  
  axis: constructor               fx=8/8  tagged=8/8
      mgcv.constructor.s_1d                               n=132  fx=92 
      mgcv.constructor.s_iso_2d                           n=30   fx=23 
      mgcv.constructor.s_iso_3d                           n=2    fx=1  
      mgcv.constructor.te                                 n=18   fx=15 
      mgcv.constructor.te_mixed_bs                        n=1    fx=1  
      mgcv.constructor.te_different_k                     n=1    fx=1  
      mgcv.constructor.ti_decomp                          n=5    fx=5  
      mgcv.constructor.t2                                 n=5    fx=4  
  axis: modifier                  fx=8/8  tagged=8/8
      mgcv.modifier.k                                     n=66   fx=51 
      mgcv.modifier.m_penalty                             n=14   fx=13 
      mgcv.modifier.by_factor                             n=23   fx=8  
      mgcv.modifier.by_factor_id                          n=1    fx=1  
      mgcv.modifier.by_numeric                            n=1    fx=1  
      mgcv.modifier.sp_fixed                              n=1    fx=1  
      mgcv.modifier.xt_extras                             n=1    fx=1  
      mgcv.modifier.pc_point                              n=2    fx=1  
  axis: mixing                    fx=7/7  tagged=7/7
      mgcv.mixing.smooth_only                             n=134  fx=102
      mgcv.mixing.parametric_plus                         n=30   fx=15 
      mgcv.mixing.two_smooths                             n=84   fx=59 
      mgcv.mixing.smooth_and_re                           n=9    fx=5  
      mgcv.mixing.by_with_main                            n=1    fx=1  
      mgcv.mixing.parametric_smooth_re                    n=2    fx=2  
      mgcv.mixing.tensor_plus_margins                     n=2    fx=2  
  axis: edge_mgcv                 fx=6/7  tagged=6/7
      mgcv.edge_mgcv.high_k                               n=1    fx=1  
      mgcv.edge_mgcv.low_k                                n=1    fx=1  
      mgcv.edge_mgcv.cc_wrap                              n=1    fx=1  
      mgcv.edge_mgcv.fs_many_levels                       n=1    fx=1  
      mgcv.edge_mgcv.te_one_var                           n=1    fx=1  
      mgcv.edge_mgcv.smooth_of_ordered                    n=1    fx=1  
      mgcv.edge_mgcv.by_missing_level                     n=0    fx=0    [MISSING]

-----------------------------------------------------------------------------
  (b) FORCED PAIRS
-----------------------------------------------------------------------------
  wr.op.star  +  wr.interaction.num_factor   OK  (n=37, ex=wr_0004)
  wr.op.power  +  wr.contrast.sum   OK  (n=1, ex=cur_0070)
  wr.transform.poly_orth  +  wr.interaction.num_factor   OK  (n=1, ex=cur_0027)
  wr.transform.poly_raw  +  wr.interaction.num_factor   OK  (n=1, ex=cur_0028)
  wr.intercept.leading_zero  +  wr.contrast.treatment   OK  (n=1, ex=cur_0015)
  wr.edge.subtract_inter  +  wr.op.star   OK  (n=1, ex=cur_0032)
  lme4.re_spec.uncorr_slope  +  lme4.grouping.crossed   OK  (n=1, ex=cur_0051)
  lme4.re_spec.factor_uncorr  +  lme4.grouping.single   OK  (n=1, ex=cur_0040)
  lme4.re_spec.corr_slope  +  lme4.grouping.nested_slash   OK  (n=1, ex=cur_0043)
  lme4.mixing.slope_also_fe  +  lme4.grouping.single   OK  (n=2, ex=cur_0036)
  mgcv.bs.cc  +  mgcv.modifier.k   OK  (n=5, ex=mgcv_0110)
  mgcv.bs.fs  +  mgcv.edge_mgcv.fs_many_levels   OK  (n=1, ex=cur_0061)
  mgcv.constructor.ti_decomp  +  mgcv.modifier.k   OK  (n=1, ex=cur_0057)
  mgcv.constructor.te  +  mgcv.modifier.by_factor   OK  (n=1, ex=mgcv_0104)
  mgcv.mixing.smooth_and_re  +  mgcv.bs.re   OK  (n=9, ex=mgcv_0003)

-----------------------------------------------------------------------------
  (c) DATASET RESOLUTION
-----------------------------------------------------------------------------
resolved:    45 / 400 executable
unresolved:  355

cases needing a dataset assignment (source_rd has no matching csv):
  R::curated                                n=37
  lme4::curated                             n=14
  mgcv::choose.k                            n=14
  gamair::ch1                               n=13
  mgcv::curated                             n=12
  mgcv::gam                                 n=11
  gamair::ch2                               n=10
  gamair::ch4                               n=10
  gamair::ch7.solutions                     n=10
  mgcv::gam.models                          n=9
  mgcv::gamm                                n=8
  gamair::ch1.solutions                     n=7
  mgcv::coxph                               n=5
  mgcv::linear.functional.terms             n=5
  mgcv::predict.gam                         n=4
  mgcv::smooth.construct.ad.smooth.spec     n=4
  stats::glm                                n=4
  stats::se.contrast                        n=4
  mgcv::gam.side                            n=3
  mgcv::pcls                                n=3
  mgcv::smooth.construct                    n=3
  mgcv::smooth.construct.gp.smooth.spec     n=3
  mgcv::smooth.construct.tp.smooth.spec     n=3
  mgcv::t2                                  n=3
  mgcv::vis.gam                             n=3
  nlme::anova.gls                           n=3
  nlme::curated                             n=3
  stats::influence.measures                 n=3
  stats::logLik                             n=3
  stats::model.extract                      n=3
  stats::zC                                 n=3
  gamair::ch4.solutions                     n=2
  gamair::ch5.solutions                     n=2
  lme4::confint.merMod                      n=2
  lme4::fixef                               n=2
  lme4::modular                             n=2
  MASS::gamma.shape.glm                     n=2
  mgcv::anova.gam                           n=2
  mgcv::cnorm                               n=2
  mgcv::coxpht                              n=2
  mgcv::factor.smooth                       n=2
  mgcv::pen.edf                             n=2
  mgcv::plot.gam                            n=2
  mgcv::qq.gam                              n=2
  mgcv::smooth.construct.bs.smooth.spec     n=2
  mgcv::smooth.construct.ps.smooth.spec     n=2
  mgcv::smooth.construct.sz.smooth.spec     n=2
  mgcv::step.gam                            n=2
  mgcv::summary.gam                         n=2
  mgcv::te                                  n=2
  nlme::ACF.gls                             n=2
  stats::anova.lm                           n=2
  stats::aov                                n=2
  stats::checkMFClasses                     n=2
  stats::confint                            n=2
  stats::effects                            n=2
  stats::expand.model.frame                 n=2
  stats::lm                                 n=2
  stats::simulate                           n=2
  stats::termplot                           n=2
  faraway::prplot                           n=1
  gamair::canWeather                        n=1
  gamair::ch3                               n=1
  gamair::ch3.solutions                     n=1
  gamair::ch7                               n=1
  gamair::curated                           n=1
  lme4::allFit                              n=1
  lme4::dummy                               n=1
  lme4::fortify                             n=1
  lme4::isREML                              n=1
  lme4::lmer                                n=1
  lme4::ngrps                               n=1
  lme4::predict.merMod                      n=1
  lme4::refit                               n=1
  lme4::VarCorr                             n=1
  MASS::addterm                             n=1
  MASS::dose.p                              n=1
  MASS::glm.nb                              n=1
  MASS::loglm                               n=1
  MASS::negative.binomial                   n=1
  MASS::stepAIC                             n=1
  mgcv::bcg                                 n=1
  mgcv::Beta                                n=1
  mgcv::clog                                n=1
  mgcv::concurvity                          n=1
  mgcv::cpois                               n=1
  mgcv::gam.mh                              n=1
  mgcv::gam.selection                       n=1
  mgcv::gam.vcomp                           n=1
  mgcv::gfam                                n=1
  mgcv::identifiability                     n=1
  mgcv::missing.data                        n=1
  mgcv::model.matrix.gam                    n=1
  mgcv::NCV                                 n=1
  mgcv::Predict.matrix.soap.film            n=1
  mgcv::random.effects                      n=1
  mgcv::s                                   n=1
  mgcv::smooth.construct.cr.smooth.spec     n=1
  mgcv::smooth.construct.fs.smooth.spec     n=1
  mgcv::smooth.construct.re.smooth.spec     n=1
  mgcv::smooth.construct.sos.smooth.spec    n=1
  mgcv::sp.vcov                             n=1
  mgcv::vcov.gam                            n=1
  mgcv::XWXd                                n=1
  nlme::ACF.lme                             n=1
  nlme::anova.lme                           n=1
  nlme::comparePred                         n=1
  nlme::corAR1                              n=1
  nlme::fitted.lme                          n=1
  nlme::getGroups.lme                       n=1
  nlme::logLik.lme                          n=1
  nlme::nlme                                n=1
  nlme::VarCorr                             n=1
  nlme::Variogram.gls                       n=1
  nlme::Variogram.lme                       n=1
  stats::add1                               n=1
  stats::alias                              n=1
  stats::case.names                         n=1
  stats::coef                               n=1
  stats::eff.aovlist                        n=1
  stats::is.empty                           n=1
  stats::lmfit                              n=1
  stats::makepredictcall                    n=1
  stats::model.frame                        n=1
  stats::model.matrix                       n=1
  stats::oneway.test                        n=1
  stats::plot.lm                            n=1
  stats::plot.profile                       n=1
  stats::predict.glm                        n=1
  stats::relevel                            n=1
  stats::selfStart                          n=1
  stats::SSD                                n=1
  stats::summary.aov                        n=1
  stats::summary.lm                         n=1
  stats::TukeyHSD                           n=1
  stats::var.test                           n=1
  synthetic::curated                        n=1

-----------------------------------------------------------------------------
  (d) AVAILABLE DATASETS (datasets/<pkg>/<name>.csv)
-----------------------------------------------------------------------------
  faraway  (142):
    aatemp
    abrasion
    aflatoxin
    africa
    airpass
    alfalfa
    amlxray
    anaesthetic
    babyfood
    beetle
    bliss
    breaking
    broccoli
    butterfat
    cathedral
    cheddar
    chicago
    chmiss
    choccake
    chredlin
    clot
    cmob
    cns
    coagulation
    composite
    cornnit
    corrosion
    cpd
    crawl
    ctsib
    death
    debt
    denim
    diabetes
    dicentric
    divusa
    drugpsy
    dvisits
    eco
    eggprod
    eggs
    epilepsy
    esdcomp
    exa
    eyegrade
    fat
    femsmoke
    fortune
    fpe
    fruitfly
    gala
    galamiss
    gammaray
    gavote
    globwarm
    haireye
    happy
    hemoglobin
    hips
    hormone
    hprice
    hsb
    infmort
    insulgas
    irrigation
    jsp
    kanga
    lawn
    leafblotch
    leafburn
    mammalsleep
    manilius
    mba
    meatspec
    melanoma
    motorins
    neighbor
    nels88
    nepali
    nes96
    newhamp
    oatvar
    odor
    ohio
    orings
    ozone
    parstum
    peanut
    penicillin
    phbirths
    pima
    pipeline
    pneumo
    potuse
    prostate
    psid
    pulp
    punting
    pvc
    pyrimidines
    rabbit
    ratdrink
    rats
    resceram
    salmonella
    sat
    savings
    seatpos
    seeds
    semicond
    sexab
    sexfun
    snail
    solder
    solv
    sono
    soybean
    spector
    speedo
    star
    stat500
    stepping
    strongx
    suicide
    teengamb
    toenail
    troutegg
    truck
    turtle
    tvdoctor
    twins
    uncviet
    uswages
    vision
    wafer
    wavesolder
    wbca
    wcgs
    weldstrength
    wfat
    wheat
    worldcup
  gamair  (28):
    aral
    bird
    blowfly
    bone
    brain
    cairo
    chicago
    chl
    co2s
    coast
    engine
    gas
    harrier
    hubble
    ipo
    mack
    mackp
    med
    meh
    mpg
    sitka
    sole
    sperm.comp1
    sperm.comp2
    stomata
    swer
    wesdr
    wine
  lme4  (20):
    Arabidopsis
    cake
    cbpp
    cbpp2
    culcitalogreg
    culcitalvolume
    Dyestuff
    Dyestuff2
    ergoStool
    gopherdat2
    grouseticks
    InstEval
    InstEval_sample
    Pastes
    Penicillin
    salamander
    schizophrenia
    sleepstudy
    toenail
    VerbAgg
  m-clark  (1):
    pisa
  MASS  (75):
    Aids2
    Animals
    anorexia
    bacteria
    beav1
    beav2
    biopsy
    birthwt
    Boston
    cabbages
    caith
    Cars93
    cats
    cement
    coop
    cpus
    crabs
    Cushings
    eagles
    epil
    farms
    fgl
    forbes
    GAGurine
    gehan
    genotype
    geyser
    gilgais
    hills
    housing
    immer
    Insurance
    leuk
    mammals
    mcycle
    Melanoma
    menarche
    michelson
    minn38
    motors
    muscle
    nlschools
    npk
    npr1
    oats
    OME
    painters
    petrol
    Pima.te
    Pima.tr
    Pima.tr2
    quine
    Rabbit
    road
    rotifer
    Rubber
    ships
    shuttle
    Sitka
    Sitka89
    Skye
    snails
    steam
    stormer
    survey
    synth.te
    synth.tr
    topo
    Traffic
    UScereal
    UScrime
    VA
    waders
    whiteside
    wtloss
  mgcv  (7):
    columb
    gamSim_eg1
    gamSim_eg2
    gamSim_eg4
    gamSim_eg5
    gamSim_eg6
    trees
  nlme  (41):
    Alfalfa
    Assay
    bdf
    BodyWeight
    Cefamandole
    Dialyzer
    Earthquake
    ergoStool
    Fatigue
    Gasoline
    Glucose
    Glucose2
    Gun
    IGF
    Machines
    MathAchieve
    MathAchSchool
    Meat
    Milk
    Muscle
    Nitrendipene
    Oats
    Orthodont
    Ovary
    Oxboys
    Oxide
    PBG
    Phenobarb
    Pixel
    Quinidine
    Rail
    RatPupWeight
    Relaxin
    Remifentanil
    Soybean
    Spruce
    Tetracycline1
    Tetracycline2
    Wafer
    Wheat
    Wheat2
  R  (51):
    airquality
    anscombe
    attenu
    attitude
    BOD
    cars
    ChickWeight
    chickwts
    CO2
    crimtab
    DNase
    esoph
    EuStockMarkets
    faithful
    Formaldehyde
    freeny
    Indometh
    infert
    InsectSprays
    iris
    LifeCycleSavings
    Loblolly
    longley
    morley
    mtcars
    npk
    occupationalStatus
    Orange
    OrchardSprays
    penguins
    PlantGrowth
    pressure
    Puromycin
    quakes
    randu
    rock
    Seatbelts
    sleep
    stackloss
    swiss
    Theoph
    ToothGrowth
    trees
    USArrests
    USJudgeRatings
    USPersonalExpenditure
    VADeaths
    volcano
    warpbreaks
    women
    WorldPhones
  rstanarm  (1):
    kidiq
  synthetic  (10):
    seed_synth_2d_smooth
    seed_synth_aliased
    seed_synth_basic
    seed_synth_big_factor
    seed_synth_crossed_re
    seed_synth_empty_cell
    seed_synth_longitudinal
    seed_synth_na_mixed
    seed_synth_nested_group
    seed_synth_singleton
