What’s the faster data types out of: Dict Set Is there any data type there that is faster than both? I would really like to know, thank you.

[image] NamedTuples vs Dict New to Julia I wondered about use cases of NamedTuples vs Dicts. Obviously one would choose a NamedTuple if the order of elements is important and a Dict if the keys have to be something else than a symbol, but are there any other situations wh…

As Julia is mostly written in Julia, it’s pretty easy to understand what they do: https://github.com/JuliaLang/julia/blob/master/base/dict.jl and https://github.com/JuliaLang/julia/blob/master/base/set.jl . Concerning the performance, best is to check in a setting mimicking your application using B…

The dataset is dynamic and I worry about performance when it comes to large scale datasets. So I pretty much want to know which is faster query-wise

Internally Sets in Julia are implemented using Dicts (only keys and no values). Both use hashing for indexing.

So in theory Dicts should complete a query faster?

I would assume that they offer the same performance. What do you actually mean by query?

For example a = Dict("key" => "value") return a["key"]

With a["key"] on a Dict you’ll get the value for the specified key. With a Set you can only store a key. They are not the same data structure.

Oh okay I understand, thank you, I guess Dictionary is the way to go

Thank you , I will just have large datasets and I need to choose if to store them and choose what data type to choose All I need to do is being able to change values by keys and add values by keys That’s it, so it looks like both Dict and NamedTuples are cable of these only Dict, so I was wonderi…

What is the fastest data type out of these?

General Usage

laborg October 1, 2018, 11:29am 11

I wouldn’t worry about performance in the beginning. Do what you want to do, and if it’s too slow, people in this forum will certainly help you.

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What is the fastest data type out of these?

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