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Improve error message when initial_params / initial_state has wrong length #163

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Merged
merged 1 commit into from
May 21, 2025
Merged

Improve error message when initial_params / initial_state has wrong length #163

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2 changes: 1 addition & 1 deletion Project.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ uuid = "80f14c24-f653-4e6a-9b94-39d6b0f70001"
keywords = ["markov chain monte carlo", "probabilistic programming"]
license = "MIT"
desc = "A lightweight interface for common MCMC methods."
version = "5.6.1"
version = "5.6.2"

[deps]
BangBang = "198e06fe-97b7-11e9-32a5-e1d131e6ad66"
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8 changes: 4 additions & 4 deletions src/sample.jl
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Expand Up @@ -653,15 +653,15 @@ tighten_eltype(x::Vector{Any}) = map(identity, x)

@nospecialize check_initial_params(x, n) = throw(
ArgumentError(
"initial parameters must be specified as a vector of length equal to the number of chains or `nothing`",
"initial_params must be specified as a vector of length equal to the number of chains or `nothing`",
),
)
check_initial_params(::Nothing, n) = nothing
function check_initial_params(x::AbstractArray, n)
if length(x) != n
throw(
ArgumentError(
"incorrect number of initial parameters (expected $n, received $(length(x))"
"the length of initial_params ($(length(x))) does not equal the number of chains ($n)",
),
)
end
Expand All @@ -671,15 +671,15 @@ end

@nospecialize check_initial_state(x, n) = throw(
ArgumentError(
"initial states must be specified as a vector of length equal to the number of chains or `nothing`",
"initial_state must be specified as a vector of length equal to the number of chains or `nothing`",
),
)
check_initial_state(::Nothing, n) = nothing
function check_initial_state(x::AbstractArray, n)
if length(x) != n
throw(
ArgumentError(
"incorrect number of initial states (expected $n, received $(length(x))"
"the length of initial_state ($(length(x))) does not equal the number of chains ($n)",
),
)
end
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