Indexing with unsorted vectors

[mbauman]

I'm not sure what to do here, but this is a problem:

julia> A = AxisArray(1:10)
10-element AxisArrays.AxisArray{Int64,1,UnitRange{Int64},(AxisArrays.Axis{:row,UnitRange{Int64}},)}:
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10

julia> A[[3,2,1]]
ERROR: Dimensional axes must be monotonically increasing
 in checkaxis at /Users/mbauman/.julia/v0.4/AxisArrays/src/core.jl:290
 in anonymous at /Users/mbauman/.julia/v0.4/AxisArrays/src/core.jl:155
 in anonymous at /Users/mbauman/.julia/v0.4/AxisArrays/src/indexing.jl:51

[tshort]

I'd call it a feature!

We could turn A[[3,2,1]] into A[sort([3,2,1])], but I'm not sure we should do that automatically.

[mbauman]

Hm, this seems to no longer error:

julia> A = AxisArray(1:5, [4,6,5,2,6])
1-dimensional AxisArray{Int64,1,...} with axes:
    :row, [4, 6, 5, 2, 6]
And data, a 5-element UnitRange{Int64}:
 1
 2
 3
 4
 5

julia> A[5:-1:1]
1-dimensional AxisArray{Int64,1,...} with axes:
    :row, [6, 2, 5, 6, 4]
And data, a 5-element StepRange{Int64,Int64}:
 5
 4
 3
 2
 1

[kmsquire]

Close? Doesn't seem to have been an error for a year and a half now...