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News and compat annotation for #29033 (mean and var for empty iterato…
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…rs).
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fredrikekre committed Dec 1, 2018
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1 change: 1 addition & 0 deletions NEWS.md
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Expand Up @@ -72,6 +72,7 @@ Standard library changes
* `merge(::NamedTuple, ::NamedTuple...)` can now be used with more than 2 `NamedTuple`s ([#29259]).
* `Future.copy!` has been moved to `Base` ([#29178]).
* New `ncodeunits(c::Char)` method as a fast equivalent to `ncodeunits(string(c))` ([#29153]).
* `mean` and `var` now handles the empty case ([#29033]).

Compiler/Runtime improvements
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3 changes: 3 additions & 0 deletions stdlib/Statistics/src/Statistics.jl
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Expand Up @@ -109,6 +109,9 @@ end
Compute the mean of an array over the given dimensions.
!!! compat "Julia 1.1"
`mean` for empty arrays requires at least Julia 1.1.
# Examples
```jldoctest
julia> A = [1 2; 3 4]
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