# NamedArrays vs NamedTuples vs Dict in objective function to optimization

**URL:** <https://discourse.julialang.org/t/namedarrays-vs-namedtuples-vs-dict-in-objective-function-to-optimization/42659>\
**Category:** General Usage\
**Tags:** performance\
**Created:** [July 7, 2020, 6:36am UTC](https://discourse.julialang.org/t/namedarrays-vs-namedtuples-vs-dict-in-objective-function-to-optimization/42659 "2020-07-07T06:36:50Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![mcabbott](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mcabbott/32/6603_2.png) [@mcabbott](https://discourse.julialang.org/u/mcabbott)\
**Post date:** [July 7, 2020, 7:50am UTC](https://discourse.julialang.org/t/namedarrays-vs-namedtuples-vs-dict-in-objective-function-to-optimization/42659/5 "2020-07-07T07:50:34Z")

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You might be looking for [https://github.com/jonniedie/ComponentArrays.jl](https://github.com/jonniedie/ComponentArrays.jl), announced [here](https://discourse.julialang.org/t/rfc-ann-componentarrays-jl-for-building-composable-models-without-a-modeling-language/38001).

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_[View the full topic](https://discourse.julialang.org/t/namedarrays-vs-namedtuples-vs-dict-in-objective-function-to-optimization/42659)._