# Coalesce function not working with data frames n x n with n\>=2

**URL:** <https://discourse.julialang.org/t/coalesce-function-not-working-with-data-frames-n-x-n-with-n-2/20624>\
**Category:** Internals & Design\
**Created:** [February 10, 2019, 3:49pm UTC](https://discourse.julialang.org/t/coalesce-function-not-working-with-data-frames-n-x-n-with-n-2/20624 "2019-02-10T15:49:38Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)\
**Post date:** [February 10, 2019, 4:29pm UTC](https://discourse.julialang.org/t/coalesce-function-not-working-with-data-frames-n-x-n-with-n-2/20624/2 "2019-02-10T16:29:44Z")

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It might help if you could read [Please read: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757), and then post a MWE - it is currently unclear what you are trying to do.

From the REPL:

```julia
help?> coalesce
search: coalesce

  coalesce(x, y...)

  Return the first value in the arguments which is not equal to missing, if
  any. Otherwise return missing.

  Examples
  ≡≡≡≡≡≡≡≡≡≡

  julia> coalesce(missing, 1)
  1

  julia> coalesce(1, missing)
  1

  julia> coalesce(nothing, 1) # returns `nothing`

  julia> coalesce(missing, missing)
  missing

```

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_[View the full topic](https://discourse.julialang.org/t/coalesce-function-not-working-with-data-frames-n-x-n-with-n-2/20624)._