Anshul Singhvi

README/package intro: what _is_ a dimensional array? what are these x and y things?

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Writing geocompjl, I'm not sure how to best explain: 1. The concept of a dimensional array 2. The concept of lookup arrays My current text is: Conceptually, a raster is...

`spy` on dimarrays with missings is still broken

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``` ERROR: ArgumentError: Conversion failed for Plot{Makie.spy} with args: Tuple{MakieCore.EndPoints{Float64}, MakieCore.EndPoints{Float64}, SparseArrays.SparseMatrixCSC{Union{Missing, Int64}, Int64}} . Plot{Makie.spy} requires to convert to argument types Tuple{MakieCore.EndPoints, MakieCore.EndPoints, AbstractMatrix{T} where T

``` julia> DimPoints(california_raster2) |> vec |> scatter julia> DimPoints(california_raster2) |> scatter ERROR: ArgumentError: Conversion failed for Scatter (With conversion trait PointBased()) with args: Tuple{DimPoints{Tuple{Float64, Float64}, 2, Tuple{X{DimensionalData.Dimensions.Lookups.Sampled{Float64, StepRangeLen{Float64, Base.TwicePrecision{Float64}, Base.TwicePrecision{Float64},...

Duplicate of #785 but local so that the docs build.

Positive integers are unaffected by this change anyway. Needs tests, probably.

The `zarr-demo` s3 bucket appears to have been taken down?

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https://zarr-demo.s3-eu-west-2.amazonaws.com/ returns a "no such bucket" page. That looks to be why tests are consistently failing...

Instead, it looks like `getindex` has to return `nothing` if the chunk doesn't exist. Should this be fixed? Is it a performance issue if we check for each chunk's existence?

Add more filters

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This PR aims to add the following filters, for compatibility with NetCDF4 and HDF5 files: - [X] Fletcher32 - [X] FixedScaleOffset - [x] Quantize - [x] Shuffle - [x] Delta...

`zlib` is sometimes used as a filter

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I recently had this issue while writing [FSSpec.jl](https://github.com/asinghvi17/FSSpec.jl): ``` Zarr.zopen(st #= ::FSStore