# How to calculate the the minimum value in a vector(array) of vectors

**URL:** <https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [April 23, 2020, 9:42pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111 "2020-04-23T21:42:32Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![robo360](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/robo360/32/13945_2.png) [@robo360](https://discourse.julialang.org/u/robo360)\
**Post date:** [April 23, 2020, 9:42pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/1 "2020-04-23T21:42:32Z")

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I am trying to find the minimum on a vector of vectors. Is there an easy way of finding it?

Thanks

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**Author:** ![mauro3](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mauro3/32/292_2.png) [@mauro3](https://discourse.julialang.org/u/mauro3)\
**Post date:** [April 23, 2020, 9:45pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/2 "2020-04-23T21:45:40Z")

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Hi @robo360! Is this what you’re after:

```julia
julia> minimum(minimum.([[1,2], [4,5]]))
1

```

?

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**Author:** ![robo360](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/robo360/32/13945_2.png) [@robo360](https://discourse.julialang.org/u/robo360)\
**Post date:** [April 23, 2020, 9:56pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/4 "2020-04-23T21:56:32Z")

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Yep! Thanks @mauro3

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**Author:** ![robo360](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/robo360/32/13945_2.png) [@robo360](https://discourse.julialang.org/u/robo360)\
**Post date:** [April 23, 2020, 9:57pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/5 "2020-04-23T21:57:41Z")

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Just out of curiosity, what do you mean?

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**Author:** ![anon94023334](https://avatars.discourse-cdn.com/v4/letter/a/e274bd/32.png) [@anon94023334](https://discourse.julialang.org/u/anon94023334)\
**Post date:** [April 23, 2020, 10:03pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/6 "2020-04-23T22:03:07Z")

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My example was a longer version of @mauro3’s. Here it is for posterity:

```julia
julia> a = [[10,20,30],[4,5,6,7,8],[9,60,2],[40,30,20]]
4-element Array{Array{Int64,1},1}:
 [10, 20, 30]
 [4, 5, 6, 7, 8]
 [9, 60, 2]
 [40, 30, 20]
julia> minimum(minimum.(a))
2

```

I deleted it because it was redundant.

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<div class="post-metadata">

**Author:** ![robo360](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/robo360/32/13945_2.png) [@robo360](https://discourse.julialang.org/u/robo360)\
**Post date:** [April 23, 2020, 10:04pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/7 "2020-04-23T22:04:43Z")

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Got it! I am new here. I thought that was your message.

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<div class="post-metadata">

**Author:** ![anon94023334](https://avatars.discourse-cdn.com/v4/letter/a/e274bd/32.png) [@anon94023334](https://discourse.julialang.org/u/anon94023334)\
**Post date:** [April 23, 2020, 10:05pm UTC](https://discourse.julialang.org/t/how-to-calculate-the-the-minimum-value-in-a-vector-array-of-vectors/38111/8 "2020-04-23T22:05:33Z")

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No worries! Welcome to the forums.