CODEWITHSUNDEEP
arraysjuliasample
Sebastián Mena
Sebastián Mena

Reputation: 31

MethodError: no method matching Weights(::Array{Any,1}, ::Float64)

I’m trying to do a sample of a string array, incorporating weights for each of the elements of the array. Specifically,

new_name_event = sample(events,Weights(dict_betas_choices[string(new_player)][new_zone][string(new_time)][string(new_loc)][string(new_res)]))

>ERROR:
MethodError: no method matching Weights(::Array{Any,1}, ::Float64)
Closest candidates are:
  Weights(!Matched::var"#18#V", ::var"#16#S") where {var"#16#S"<:Real, var"#17#T"<:Real, var"#18#V"<:AbstractArray{var"#17#T",1}} at C:\Users\semed\.julia\packages\StatsBase\ZxhK8\src\weights.jl:13
  Weights(::Any) at C:\Users\semed\.julia\packages\StatsBase\ZxhK8\src\weights.jl:16

Stacktrace:
 [1] Weights(::Array{Any,1}) at C:\Users\semed\.julia\packages\StatsBase\ZxhK8\src\weights.jl:16
 [2] top-level scope at .\In[22]:62
 [3] include_string(::Function, ::Module, ::String, ::String) at .\loading.jl:1091

Where,

println(events, typeof(events))
>["Shot", "Duel", "Pass"]Array{String,1}

pesos = dict_betas_choices[string(new_player)][new_zone][string(new_time)][string(new_loc)][string(new_res)]
println(pesos, typeof(pesos), typeof(pesos[1]))
>Any[0.00114591, 0.69774462, 0.30110947] Array{Any,1} Float64

Upvotes: 3

Views: 142

Answers (1)

Bogumił Kamiński
Bogumił Kamiński

Reputation: 69949

This should fix it in your case:

Float64.(dict_betas_choices[string(new_player)][new_zone][string(new_time)][string(new_loc)][string(new_res)])

If it errors it would mean that your data are not consisting of only numbers.

In general you should fix the data in the source to have eltype not Any but some real number type, e.g. Float64 as suggested above (this should be fixed at data structure creation time).

Upvotes: 4

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