SlicTranspilerStanBlocks → Stan
Spotlight
StanBlocks.jl ↗

Composable example · Model workspace

1 source units
Library
# Exact StanBlocks code: use StanBlocks.jl@20f12e8fcdc923a0adc88a9b9f7ffff566da4cdf.
using StanBlocks
Dataline 3
# Vector{Float64} → Stan vector[n]
Functionsno lines
Anonymous submodelsno lines
Endpoint modelslines 4–8
Endpoint model
@a9c3b1Your workspacedata: normal
= @slic (; y) begin
end
Add from Library
Aerial observation streamaerial_stream
ANONYMOUS SUBMODEL

Case studies

Angle probabilityangle_submodel
ANONYMOUS SUBMODEL

Case studies

Bycatch observation streambycatch_stream
ANONYMOUS SUBMODEL

Case studies

Disk submodeldisk
ANONYMOUS SUBMODEL

Worked examples

Distance probabilitydistance_submodel
ANONYMOUS SUBMODEL

Case studies

HSGP processhsgp
ANONYMOUS SUBMODEL

Case studies

Intercept plus HSGPintercept_hsgp
ANONYMOUS SUBMODEL

Case studies

Population effectpopulation_effect
ANONYMOUS SUBMODEL

Feature atlas

Reusable exponentiated-quadratic HSGPhsgp_eq
ANONYMOUS SUBMODEL

Case studies

Reusable periodic HSGPhsgp_periodic
ANONYMOUS SUBMODEL

Case studies

Reusable regularized horseshoe priorreg_horseshoe
ANONYMOUS SUBMODEL

Case studies

Soil dynamicssoil_dynamics
ANONYMOUS SUBMODEL

Case studies

Angle and distanceangle-distance
ENDPOINT MODEL

Worked examples

data: golf_distance
Angle modelangle
ENDPOINT MODEL

Worked examples

data: golf_angle
Angle modelangle
ENDPOINT MODEL

Case studies

data: golf_angle
Angle, distance and extra variationextra-variation
ENDPOINT MODEL

Case studies

data: golf_distance
Angle, distance and residual variationangle-distance-residual
ENDPOINT MODEL

Worked examples

data: golf_distance
Anonymous submodelatlas__anonymous_submodel
ENDPOINT MODEL

Feature atlas

data: regression_k
AR(1) recurrenceguide__ar1
ENDPOINT MODEL

Main guide

data: ar1
Base modelbase
ENDPOINT MODEL

StanCon 2026

data: xy_real
Basic normal modelguide__basic_normal
ENDPOINT MODEL

Main guide

data: normal
Bernoulli logit-link GLMatlas__bernoulli_glm
ENDPOINT MODEL

Feature atlas

data: binary_glm
Birthdays (HSGP + regularized horseshoe)case_study__birthdays
ENDPOINT MODEL

Case studies

data: births_gpbf8rhs
Block placement, types and shapesatlas__core_placement
ENDPOINT MODEL

Feature atlas

data: xy_real
Categorical plateauthoring__categorical_plate
ENDPOINT MODEL

Authoring guide

data: categorical_plate
Censored observationatlas__censored
ENDPOINT MODEL

Feature atlas

data: scalar_bounds
Complete observation-combinator modelauthoring__observation_combinators
ENDPOINT MODEL

Authoring guide

data: combinators
Complete poolingcomplete-pooling
ENDPOINT MODEL

Case studies

data: radon
Cookbook hierarchical normalguide__hierarchical_normal
ENDPOINT MODEL

Main guide

data: normal
Cookbook linear regressionguide__linear_regression
ENDPOINT MODEL

Main guide

data: xy_real
Cookbook logistic regressionguide__logistic_regression
ENDPOINT MODEL

Main guide

data: binary_glm
Cross-validation taintatlas__cv_taint
ENDPOINT MODEL

Feature atlas

data: cv_people
Custom distribution triadatlas__custom_distribution
ENDPOINT MODEL

Feature atlas

data: scalar_y
Daily incidenceincidence
ENDPOINT MODEL

Case studies

data: school_incidence
Data and parameter dependency placementstancon__dependency_graph
ENDPOINT MODEL

StanCon 2026

data: xy_real
Data rebinding Bernoulli modelatlas__rebinding_bernoulli
ENDPOINT MODEL

Feature atlas

data: counts
Defaults and keyword argumentsatlas__function_signatures
ENDPOINT MODEL

Feature atlas

data: signatures
Dense generated observation outputsatlas__dense_observation_outputs
ENDPOINT MODEL

Feature atlas

data: normal
Disk constraintsworked__constraints_disk
ENDPOINT MODEL

Worked examples

data: none
Dual Julia and Stan emissionatlas__julia_dual
ENDPOINT MODEL

Feature atlas

data: scalar_y
Earnings–height regressionguide__earn_height
ENDPOINT MODEL

Main guide

data: earn_height
Estimated overshoot and toleranceestimated-tolerance
ENDPOINT MODEL

Worked examples

data: golf_angle
Fixed betafixed
ENDPOINT MODEL

Feature atlas

data: xy_fixed_beta
Forward simulationsimulation
ENDPOINT MODEL

Case studies

data: planet_sim
Golf case studycase_study__golf
ENDPOINT MODEL

Case studies

data: golf_distance
Golf model familyworked__golf_family
ENDPOINT MODEL

Worked examples

data: golf_basic
Grey-seal integrated population modelcase_study__grey_seal_ipm
ENDPOINT MODEL

Case studies

data: seal_ipm
Homoskedastic modelhomoskedastic
ENDPOINT MODEL

Case studies

data: motorcycle
Infer gravitational interactioninfer-k
ENDPOINT MODEL

Case studies

data: planet_k
Inline mutation helpersatlas__inline_mutation
ENDPOINT MODEL

Feature atlas

data: iteration
Interval-censored observationatlas__interval_censored
ENDPOINT MODEL

Feature atlas

data: scalar_bounds
Iteration function suiteatlas__iteration
ENDPOINT MODEL

Feature atlas

data: iteration
l2_scaled_priorl2_scaled_prior
ENDPOINT MODEL

Starter sources

data: normal
Linear regressionstancon__linear_regression
ENDPOINT MODEL

StanCon 2026

data: xy_real
Linear regression with an explicit meanstancon__linear_regression_mu
ENDPOINT MODEL

StanCon 2026

data: xy_real
linear_regressionlinear_regression
ENDPOINT MODEL

Starter sources

data: regression
Logistic baselinelogistic
ENDPOINT MODEL

Case studies

data: golf_basic
Missing continuous outcomesatlas__missing_outcomes
ENDPOINT MODEL

Feature atlas

data: missing_y
Missing outcomesauthoring__missing_outcomes
ENDPOINT MODEL

Authoring guide

data: missing_y
Motorcycle case studycase_study__motorcycle
ENDPOINT MODEL

Case studies

data: motorcycle
Named random-slope submodelstancon__random_slope
ENDPOINT MODEL

StanCon 2026

data: xy_real
Named submodel dispatchatlas__named_submodel_dispatch
ENDPOINT MODEL

Feature atlas

data: xy_real
Negative-binomial log-link GLMatlas__negbin_glm
ENDPOINT MODEL

Feature atlas

data: count_glm
Nested heteroskedastic modelnested
ENDPOINT MODEL

Case studies

data: motorcycle
No poolingno-pooling
ENDPOINT MODEL

Case studies

data: radon
Normal identity-link GLMatlas__normal_glm
ENDPOINT MODEL

Feature atlas

data: regression_k
ODE with a captured closureatlas__ode_closure
ENDPOINT MODEL

Feature atlas

data: ode_scalar
Partly missing continuous outcomestancon__missing_outcome
ENDPOINT MODEL

StanCon 2026

data: missing_y
PK ODE function and modelatlas__pk_ode
ENDPOINT MODEL

Feature atlas

data: pk_ode
Planets case studycase_study__planets
ENDPOINT MODEL

Case studies

data: planet_full
Poisson log-link GLMatlas__poisson_glm
ENDPOINT MODEL

Feature atlas

data: count_glm
poisson_glmpoisson_glm
ENDPOINT MODEL

Starter sources

data: counts
Population PK/PD (two-compartment Friberg)case_study__population_pk
ENDPOINT MODEL

Case studies

data: pop_pkpd_friberg
Post-hoc model variantsatlas__model_variants
ENDPOINT MODEL

Feature atlas

data: xy_real
Prior-free regression coefficientguide__flat_regression
ENDPOINT MODEL

Main guide

data: regression
Radon case studycase_study__radon
ENDPOINT MODEL

Case studies

data: radon
Ragged constrained simplex parametersatlas__ragged_simplex
ENDPOINT MODEL

Feature atlas

data: ragged_simplex
Ragged dataatlas__ragged_data
ENDPOINT MODEL

Feature atlas

data: ragged
Ragged groupsauthoring__ragged_data
ENDPOINT MODEL

Authoring guide

data: ragged
Reported daily incidencereported-incidence
ENDPOINT MODEL

Case studies

data: school_incidence
Runtime assertion helperatlas__assertion
ENDPOINT MODEL

Feature atlas

data: scalar_xy
Scalar plateatlas__scalar_plate
ENDPOINT MODEL

Feature atlas

data: plate_scalar
Scalar plateauthoring__scalar_plate
ENDPOINT MODEL

Authoring guide

data: plate_scalar6
School case studycase_study__school
ENDPOINT MODEL

Case studies

data: school
Separate measurement errorlatent-measurement
ENDPOINT MODEL

Case studies

data: soil_measurement
Soil case studycase_study__soil
ENDPOINT MODEL

Case studies

data: soil
Stepping stone: additive HSGPadditive-hsgp
ENDPOINT MODEL

Case studies

data: births
Stepping stone: analytic population PKtwo-compartment-pk
ENDPOINT MODEL

Case studies

data: pop_pk
Transpile-time return type queryatlas__return_type_query
ENDPOINT MODEL

Feature atlas

data: signatures
Truncated observationatlas__truncated
ENDPOINT MODEL

Feature atlas

data: scalar_bounds
Typed flat parameteratlas__typed_flat_parameter
ENDPOINT MODEL

Feature atlas

data: regression_k
varying_interceptvarying_intercept
ENDPOINT MODEL

Starter sources

data: hierarchical
Vector plateauthoring__vector_plate
ENDPOINT MODEL

Authoring guide

data: plate_vector
Vector-valued plate cellsatlas__vector_plate
ENDPOINT MODEL

Feature atlas

data: plate_vector
Weighted observationatlas__weighted
ENDPOINT MODEL

Feature atlas

data: scalar_bounds
Wide-prior model variantstancon__wide_prior_variant
ENDPOINT MODEL

StanCon 2026

data: xy_real
Aerial Count Lpmfaerial_count_lpmf
UDF

Case studies

Aerial Count Lpmfsaerial_count_lpmfs
UDF

Case studies

Aerial Count Rngaerial_count_rng
UDF

Case studies

angle vec2angle matangle_vec2angle_mat
UDF

Helpful Stan Functions · Linear algebra

angle2cholangle2chol
UDF

Helpful Stan Functions · Linear algebra

AR(1) recurrencear1_recurse
UDF

Main guide

Birth Rate At Carrying Capacitybirth_rate_at_carrying_capacity
UDF

Case studies

bivariate normal copula cdfbivariate_normal_copula_cdf
UDF

Helpful Stan Functions · Copulas

Bycatch Comp Lpmfbycatch_comp_lpmf
UDF

Case studies

Bycatch Comp Lpmfsbycatch_comp_lpmfs
UDF

Case studies

Bycatch Comp Rngbycatch_comp_rng
UDF

Case studies

Caller-buffer mutationset_first!
UDF

Feature atlas

chol kronecker prodchol_kronecker_prod
UDF

Helpful Stan Functions · Linear algebra

clayton copula lpdfclayton_copula_lpdf
UDF

Helpful Stan Functions · Copulas

Column sums over EachColcol_sums
UDF

Feature atlas

Compute Baseline Birth Ratecompute_baseline_birth_rate
UDF

Case studies

Compute Density Dependence Interceptcompute_density_dependence_intercept
UDF

Case studies

Create Aging Matrixcreate_aging_matrix
UDF

Case studies

Create Transition Matrixcreate_transition_matrix
UDF

Case studies

cubecube
UDF

Starter sources

Deterministic centered-sum functioncentered_sum
UDF

StanCon 2026

DH dH/dtdH_dt
UDF

Case studies

Disk transformuniform_disk_constrain
UDF

Worked examples

Eight-state Friberg PK/PD ODEfriberg_rhs
UDF

Case studies

Element typeelement_type
UDF

Feature atlas

Enumerated accumulationweighted_sum
UDF

Feature atlas

Exponentiated-quadratic spectrumdiag_spd_eq
UDF

Case studies

Floating-holiday overridesholiday_overrides
UDF

Case studies

frank copula lpdffrank_copula_lpdf
UDF

Helpful Stan Functions · Copulas

gpareto cdfgpareto_cdf
UDF

Helpful Stan Functions · Distributions

gpareto lccdfgpareto_lccdf
UDF

Helpful Stan Functions · Distributions

gpareto lcdfgpareto_lcdf
UDF

Helpful Stan Functions · Distributions

gpareto lpdfgpareto_lpdf
UDF

Helpful Stan Functions · Distributions

gpareto rnggpareto_rng
UDF

Helpful Stan Functions · Distributions

gumbel copula lpdfgumbel_copula_lpdf
UDF

Helpful Stan Functions · Copulas

Harvest Bags Lpdfharvest_bags_lpdf
UDF

Case studies

Harvest Bags Lpdfsharvest_bags_lpdfs
UDF

Case studies

Harvest Bags Rngharvest_bags_rng
UDF

Case studies

Historical disk densityuniform_disk_lpdf
UDF

Worked examples

HSGP basisphi_eq
UDF

Case studies

Hunting Comp Lpmfhunting_comp_lpmf
UDF

Case studies

Hunting Comp Lpmfshunting_comp_lpmfs
UDF

Case studies

Hunting Comp Rnghunting_comp_rng
UDF

Case studies

in orderin_order
UDF

Helpful Stan Functions · Array operations

Initialize Populationinitialize_population
UDF

Case studies

Inline scalescale
UDF

Feature atlas

inv erfinv_erf
UDF

Helpful Stan Functions · Special functions

inv erf nsqrtinv_erf_nsqrt
UDF

Helpful Stan Functions · Special functions

l2_norml2_norm
UDF

Starter sources

lognormal qflognormal_qf
UDF

Helpful Stan Functions · Quantile functions

lower elementslower_elements
UDF

Helpful Stan Functions · Linear algebra

Mortality Ratesmortality_rates
UDF

Case studies

multi normal cholesky copula lpdfmulti_normal_cholesky_copula_lpdf
UDF

Helpful Stan Functions · Copulas

Multinomial Allocationmultinomial_allocation
UDF

Case studies

Mutating compositionmutate_scaled
UDF

Feature atlas

normal copula lpdfnormal_copula_lpdf
UDF

Helpful Stan Functions · Copulas

normal copula vector lpdfnormal_copula_vector_lpdf
UDF

Helpful Stan Functions · Copulas

One-compartment ODE RHSpk_rhs
UDF

Feature atlas

Optional keywordshift
UDF

Feature atlas

Periodic basisphi_periodic
UDF

Case studies

Periodic spectrumdiag_spd_periodic
UDF

Case studies

Planetary ODE right-hand sideplanetary_rhs
UDF

Case studies

Pointwise robust densityrobust_lpdfs
UDF

Feature atlas

Positional defaultaffine
UDF

Feature atlas

Positive safe logsafe_log
UDF

Feature atlas

Pregnancy Lpmfpregnancy_lpmf
UDF

Case studies

Pregnancy Lpmfspregnancy_lpmfs
UDF

Case studies

Pregnancy Rngpregnancy_rng
UDF

Case studies

Reproductive Signs Lpmfreproductive_signs_lpmf
UDF

Case studies

Reproductive Signs Lpmfsreproductive_signs_lpmfs
UDF

Case studies

Reproductive Signs Rngreproductive_signs_rng
UDF

Case studies

Required keywordsscale
UDF

Feature atlas

Return-type-driven copycopy_vec
UDF

Feature atlas

Robust densityrobust_lpdf
UDF

Feature atlas

Robust predictive RNGrobust_rng
UDF

Feature atlas

SIR ODE right-hand sideschool_sir_rhs
UDF

Case studies

softplussoftplus
UDF

Starter sources

Solver-specialized subject predictionfriberg_subject
UDF

Case studies

sqsq
UDF

Starter sources

standardizestandardize
UDF

Starter sources

Stepping-stone two-compartment IV bolustwocmt_iv
UDF

Case studies

student t lccdf stanstudent_t_lccdf_stan
UDF

Helpful Stan Functions · Distributions

student t lcdf stanstudent_t_lcdf_stan
UDF

Helpful Stan Functions · Distributions

Two-axis comprehensionouter
UDF

Feature atlas

Two-pool ODE right-hand sidetwo_pool_feedback
UDF

Case studies

unit johnson cdfunit_johnson_cdf
UDF

Helpful Stan Functions · Distributions

unit johnson lccdfunit_johnson_lccdf
UDF

Helpful Stan Functions · Distributions

unit johnson lcdfunit_johnson_lcdf
UDF

Helpful Stan Functions · Distributions

unit johnson lpdfunit_johnson_lpdf
UDF

Helpful Stan Functions · Distributions

unit johnson qfunit_johnson_qf
UDF

Helpful Stan Functions · Quantile functions

unit johnson rngunit_johnson_rng
UDF

Helpful Stan Functions · Distributions

Update Birth Rateupdate_birth_rate
UDF

Case studies

Update Population From Survivorsupdate_population_from_survivors
UDF

Case studies

Update Pregnancy Rateupdate_pregnancy_rate
UDF

Case studies

Value comprehensionsquares
UDF

Feature atlas

Year-recursive state processrun_state_process
UDF

Case studies

Zipped productsproducts
UDF

Feature atlas

Expand a section to edit its bluish-outlined code; the summary keeps its full-script line range visible. Data is shared by every endpoint; anonymous submodels are the reusable authoring unit. Choose Transpile model to make another endpoint active; public Library saving stays disabled.

Ready to transpile

• ready source loaded without executing
Transpiling model and checking the generated Stan…
Edit the source, then transpile when ready.

Using SlicTranspiler

StanBlocks (SLIC) → Stan, in the browser

What this does

SlicTranspiler turns editable Julia/StanBlocks source into Stan, checks the generated program with stanc, and keeps source and output side by side. Most prepared Library examples transpile as soon as you open them; large workspaces and shared links stay review-first until you choose Transpile.

The workbench

  • Compose data, functions, anonymous submodels and endpoint models in one copyable Julia script. Section summaries keep their global line ranges visible while collapsed; Data starts collapsed.
  • Arrange the source and generated-code panes with the center divider. Drag it, focus it and use the arrow keys, or use its edge buttons to collapse either pane completely; your layout stays in this browser.
  • Edit the bluish-outlined code in place. Binding names live in the code itself, so there is no second label to drift out of sync.
  • Transpile an endpoint with its button or ⌘/Ctrl + Enter; the Stan program and its stanc result appear on the right and that endpoint is highlighted.
  • The Function tab transpiles a single @deffun into its emitted Stan function.
  • The Library collects runnable examples and a guided Model spotlight; call any Library function by name.
  • Share builds a link that reopens the editor with your source.

SLIC in a nutshell

y ~ normal(mu, sigma)
A ~ statement — a prior on a parameter, or a likelihood when the left side is data.
mu = alpha + beta * x
An = assignment — a deterministic transform.
beta::vector[k] ~ normal(0, 1)
A typed declaration. Left bare (beta::vector[k]) it becomes a flat-prior parameter.
No loops or if in a model body
Control flow lives in a @deffun Stan function (the Function tab); the model calls it straight-line.
theta ~ plate(y; outer=N) do yi … end
The one sampling loop — a fresh parameter and observation per group.
Submodels
Name a reusable fragment and pass its inputs by keyword: eta ~ regression(; x).
Observations
weighted, truncated, censored and interval_censored wrap a family; missing outcomes are imputed automatically.

Try a Spotlight model

These prepared examples open editable and already transpiled:

Browse every prepared source in the Library.

StanBlocks documentation ↗

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