On Thu, Nov 17, 2016 at 2:39 PM, Kevin Liu <kvt...@gmail.com> wrote:
> Right, I need the instance of Factor

Then use the instance of Factor.

>
> On Thursday, November 17, 2016 at 5:33:05 PM UTC-2, Yichao Yu wrote:
>>
>> On Thu, Nov 17, 2016 at 2:27 PM, Kevin Liu <kvt...@gmail.com> wrote:
>> > I replaced Factor[:FactorMargin]() with Factor.FactorMargin() back
>> > again.
>> >
>> > Still, for FactorOperations.jl on Atom, I get {UndefVarError: Factor not
>> > defined} at the end of each block.
>> >
>> > Factor is defined on Factor.jl, and that file evaluates fine.
>>
>> AFAICT the `Factor`is a type so `Factor.FactorMargin` is definitely wrong.
>>
>> >
>> > The main file, BN.jl, includes Factor.jl and FactorOperations.jl and
>> > exports
>> > Factor, and also evaluates fine.
>> >
>> > On Wednesday, November 16, 2016 at 11:25:24 PM UTC-2, Yichao Yu wrote:
>> >>
>> >> On Wed, Nov 16, 2016 at 7:24 PM, Kevin Liu <kvt...@gmail.com> wrote:
>> >> > Hi Yichao!
>> >>
>> >> In general there's nothing from the code you posted that shows what
>> >> you want to do.
>> >>
>> >> >
>> >> > Here is the function from FactorOperations.jl
>> >> >
>> >> > function FactorDropMargin(A::Factor, Remove_var::Vector{String})
>> >> >     Remove_dims = indexin(Remove_var, A.var)
>> >> >     if any(Remove_dims==0)
>> >> >         error("Wrong variable!")
>> >> >     end
>> >> >
>> >> >     Remain_var = symdiff(A.var, Remove_var)
>> >> >     Remain_dims = indexin(Remain_var, A.var)
>> >> >
>> >> >     Factor[:FactorMargin](A, Remove_var, Remain_var, Remove_dims,
>> >> > Remain_dims) # line 85
>> >>
>> >> Unless you overloaded getindex on this type (which you should include)
>> >> you are construction a Vector of `Factor` from a symbol and then
>> >> calling it. It's impossible to tell what you actually want to do.
>> >>
>> >> And as I previously mentioned, unless you are using PyCall, the issue
>> >> you linked is totally unrelated to this.
>> >>
>> >> > end
>> >> >
>> >> > runtests.jl:
>> >> >
>> >> > @testset "Multiply and marginalize factor" begin
>> >> >
>> >> >   A=Factor(["a", "b"],[3, 2],[0.5, 0.1, 0.3, 0.8, 0, 0.9])
>> >> >   B=Factor(["b", "c"],[2, 2],[0.5, 0.1, 0.7, 0.2])
>> >> >   C = FactorProduct(A, B)
>> >> >   FactorDropMargin(C, ["c"]) # line 19
>> >> >   FactorKeepMargin(C, ["b", "a"])
>> >> >   FactorPermute(ans, [2, 1])
>> >> >   FactorKeepMargin(C, ["a", "b"])
>> >> >
>> >> > end
>> >> >
>> >> > what I got on the REPL:
>> >> >
>> >> > julia> Pkg.test("BN")
>> >> >
>> >> > INFO: Testing BN
>> >> >
>> >> > Test Summary:                                     |
>> >> >
>> >> >   Define, permute factor, and call (var, card, val) | No tests
>> >> >
>> >> > Multiply and marginalize factor: Error During Test
>> >> >
>> >> >   Got an exception of type ErrorException outside of a @test
>> >> >
>> >> >   type DataType has no field FactorMargin
>> >> >
>> >> >    in FactorDropMargin(::BN.Factor, ::Array{String,1}) at
>> >> > /Users/Corvus/.julia/v0.5/BN/src/FactorOperations.jl:85
>> >> >
>> >> >    in macro expansion; at
>> >> > /Users/Corvus/.julia/v0.5/BN/test/runtests.jl:19
>> >> > [inlined]
>> >> >
>> >> >    in macro expansion; at ./test.jl:672 [inlined]
>> >> >
>> >> >    in anonymous at ./<missing>:?
>> >> >
>> >> >    in include_from_node1(::String) at ./loading.jl:488
>> >> >
>> >> >    in include_from_node1(::String) at
>> >> >
>> >> >
>> >> > /Applications/Julia-0.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
>> >> >
>> >> >    in process_options(::Base.JLOptions) at ./client.jl:262
>> >> >
>> >> >    in _start() at ./client.jl:318
>> >> >
>> >> >    in _start() at
>> >> >
>> >> >
>> >> > /Applications/Julia-0.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
>> >> >
>> >> > Test Summary:                   | Error  Total
>> >> >
>> >> >   Multiply and marginalize factor |     1      1
>> >> >
>> >> >
>> >> > On Wednesday, November 16, 2016 at 10:02:48 PM UTC-2, Yichao Yu
>> >> > wrote:
>> >> >>
>> >> >> On Wed, Nov 16, 2016 at 6:50 PM, Kevin Liu <kvt...@gmail.com> wrote:
>> >> >> > From this issue https://github.com/JuliaPy/PyPlot.jl/issues/157 I
>> >> >> > understand
>> >> >>
>> >> >> ^^ This is irrelevant unless you are using PyCall
>> >> >>
>> >> >> >
>> >> >> > `Factor[:FactorMargin](A, Remove_var, Remain_var, Remove_dims,
>> >> >> > Remain_dims)`
>> >> >> > (line 85 of FactorOperations.jl) should pass, as it does on Atom,
>> >> >> > but
>> >> >> > not on
>> >> >> > the REPL, which throws
>> >> >> >
>> >> >> > Got an exception of type ErrorException outside of a @test
>> >> >> >
>> >> >> >   type DataType has no field FactorMargin
>> >> >> >
>> >> >> >    in FactorDropMargin(::BN.Factor, ::Array{String,1}) at
>> >> >> > /Users/Corvus/.julia/v0.5/BN/src/FactorOperations.jl:85
>> >> >>
>> >> >> Impossible to tell without code.
>> >> >>
>> >> >> >
>> >> >> >
>> >> >> > Help, please.

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