# DataFrames cannot describe columns with #N/A DataValue

**URL:** <https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278>\
**Category:** General Usage\
**Created:** [September 21, 2018, 2:00pm UTC](https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278 "2018-09-21T14:00:06Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tk3369](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tk3369/32/2824_2.png) [@tk3369](https://discourse.julialang.org/u/tk3369)\
**Post date:** [September 21, 2018, 2:00pm UTC](https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278/1 "2018-09-21T14:00:06Z")

</div>

Where should I file this bug…?

```julia
julia> using DataFrames, DataValues

julia> x = DataFrame(a = [DataValue{Any}()])
1×1 DataFrame
│ Row │ a │
├─────┼─────┤
│ 1 │ #NA │

julia> describe(x)
Unreachable reached at 0x129c9e0e6

signal (4): Illegal instruction: 4
in expression starting at no file:0
setindex! at ./dict.jl:381
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
grow_to! at ./dict.jl:159
unknown function (ip: 0x129c9d83e)
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
grow_to! at ./dict.jl:160
Type at ./dict.jl:145
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
Type at ./dict.jl:125
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
get_stats at /Users/tomkwong/.julia/packages/DataFrames/utxEh/src/abstractdataframe/abstractdataframe.jl:509
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
iterate at ./generator.jl:47 [inlined]
collect at ./array.jl:619
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
#describe#18 at /Users/tomkwong/.julia/packages/DataFrames/utxEh/src/abstractdataframe/abstractdataframe.jl:456
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
describe at /Users/tomkwong/.julia/packages/DataFrames/utxEh/src/abstractdataframe/abstractdataframe.jl:428
jl_fptr_trampoline at /Users/osx/buildbot/slave/package_osx64/build/src/gf.c:1829
do_call at /Users/osx/buildbot/slave/package_osx64/build/src/interpreter.c:324
eval_stmt_value at /Users/osx/buildbot/slave/package_osx64/build/src/interpreter.c:363 [inlined]
eval_body at /Users/osx/buildbot/slave/package_osx64/build/src/interpreter.c:686
jl_interpret_toplevel_thunk_callback at /Users/osx/buildbot/slave/package_osx64/build/src/interpreter.c:799
unknown function (ip: 0xfffffffffffffffe)
unknown function (ip: 0x113ecc28f)
unknown function (ip: 0xffffffffffffffff)
jl_interpret_toplevel_thunk at /Users/osx/buildbot/slave/package_osx64/build/src/interpreter.c:808
jl_toplevel_eval_flex at /Users/osx/buildbot/slave/package_osx64/build/src/toplevel.c:787
jl_toplevel_eval_in at /Users/osx/buildbot/slave/package_osx64/build/src/builtins.c:622
eval at ./boot.jl:319
eval_user_input at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.0/REPL/src/REPL.jl:85
macro expansion at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.0/REPL/src/REPL.jl:117 [inlined]
#28 at ./task.jl:259
jl_apply at /Users/osx/buildbot/slave/package_osx64/build/src/./julia.h:1536 [inlined]
start_task at /Users/osx/buildbot/slave/package_osx64/build/src/task.c:268
Allocations: 71926011 (Pool: 71910227; Big: 15784); GC: 158
Illegal instruction: 4

```

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<div class="post-metadata">

**Author:** ![davidanthoff](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/davidanthoff/32/223493_2.png) [@davidanthoff](https://discourse.julialang.org/u/davidanthoff)\
**Post date:** [October 13, 2018, 2:24am UTC](https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278/2 "2018-10-13T02:24:07Z")

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Probably Julia itself? Whatever we do in either DataValues.jl or DataFrames.jl shouldn’t be able to bring down Julia.

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<div class="post-metadata">

**Author:** ![nalimilan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nalimilan/32/147_2.png) [@nalimilan](https://discourse.julialang.org/u/nalimilan)\
**Post date:** [October 13, 2018, 2:40pm UTC](https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278/3 "2018-10-13T14:40:29Z")

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Looks similar to  
[https://github.com/JuliaLang/julia/issues/29430](https://github.com/JuliaLang/julia/issues/29430)

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<div class="post-metadata">

**Author:** ![tk3369](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tk3369/32/2824_2.png) [@tk3369](https://discourse.julialang.org/u/tk3369)\
**Post date:** [October 14, 2018, 6:19pm UTC](https://discourse.julialang.org/t/dataframes-cannot-describe-columns-with-n-a-datavalue/15278/4 "2018-10-14T18:19:59Z")

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Submitted issue.

[https://github.com/JuliaLang/julia/issues/29639](https://github.com/JuliaLang/julia/issues/29639)