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Extend support for (b)lavaan models #517

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Extend support for (b)lavaan models#517
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Enhancement 💥Implemented features can be improved or revised

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@mattansb
mattansb
opened on Mar 3, 2022

Related to easystats/effectsize#420

library(blavaan)

model <- '
  # latent variable definitions
     ind60 =~ x1 + x2 + x3
     dem60 =~ y1 + a*y2 + b*y3 + c*y4
     dem65 =~ y5 + a*y6 + b*y7 + c*y8

  # regressions
    dem60 ~ ind60
    dem65 ~ ind60 + dem60

  # residual correlations
    y1 ~~ y5
    y2 ~~ y4 + y6
    y3 ~~ y7
    y4 ~~ y8
    y6 ~~ y8
'

fit <- bsem(model, data = PoliticalDemocracy,
            dp = dpriors(nu = "normal(5,10)"))
insight::model_info(fit)
#> NULL
#> Warning message:
#> Could not access model information.

Activity

  1. strengejacke commented on Mar 3, 2022

    @strengejacke
    strengejacke
    on Mar 3, 2022
    Member

    We have only limited support for SEM. lavaan also only has a few methods, like get_parameters(). Not sure what relevant information could be included in the output?

  2. mattansb commented on Mar 3, 2022

    @mattansb
    mattansb
    on Mar 3, 2022
    MemberAuthor
    • n_obs
    • is bayesian = true
    • is_mixed - lavaan can be multilevel, maybe this is also true for blavaan?
    • is_multivariate - true if more than one outcome (which would be always?)
    • is linear = true (unless some outcomes are ordinal?)
      • link_function and family = identity + gauss (unless some outcomes are ordinal?)
  3. mattansb
    changed the title [-]Support `blavaan` models[/-] [+]Extend support for `(b)lavaan` models[/+] on Mar 3, 2022
  4. strengejacke
    added
    Enhancement 💥Implemented features can be improved or revised
    on Mar 7, 2022

  5. mattansb commented on Mar 25, 2022

    @mattansb
    mattansb
    on Mar 25, 2022
    MemberAuthor

    How do functions like find_predictors deal with multivariate models? Do they give a list of predictor for each variate, or just a vector of all the predictors?

  6. strengejacke commented on Mar 25, 2022

    @strengejacke
    strengejacke
    on Mar 25, 2022
    Member
    m <- insight::download_model("brms_mv_1")
insight::find_predictors(m)
#> $cyl
#> $cyl$conditional
#> [1] "wt" "hp"
#> 
#> 
#> $gear
#> $gear$conditional
#> [1] "wt" "hp"
#> 
#> 
#> $carb
#> $carb$conditional
#> [1] "wt" "hp"

  7. DominiqueMakowski commented on Mar 25, 2022

    @DominiqueMakowski
    DominiqueMakowski
    on Mar 25, 2022
    Member

    (@mattansb I am sending you a lot of motivating vibes for this one, having a complete support of SEMs in easystats would be awesome :)

  8. strengejacke commented on Jun 22, 2023

    @strengejacke
    strengejacke
    on Jun 22, 2023
    Member

    @mattansb, did the vibes arrive?

  9. mattansb commented on Jun 22, 2023

    @mattansb
    mattansb
    on Jun 22, 2023
    MemberAuthor

    They did not....

    ThatsNotTheVibeIWasFeelingNotAVibeGIF

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