DataFrames.jl
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JuliaData
In-memory tabular data in Julia
Assigning a named function to a column as its format I find the following feature from InMemoryDatasets very useful: - By default, formatted values are used for operations like: displaying,...
While I am implementing https://github.com/JuliaData/DataFrames.jl/pull/3055 let us discuss if we want some DataFrames.jl specific namespace of metadata. Following Apache Arrow, which reserves `ARROW:` prefix for keys, we could say that...
Hi! I am submitting the initial version of the code that makes DataFrames.jl uses PrettyTables.jl as HTML backend. I need features that are not released in PrettyTables.jl yet. Hence, I...
Hi, really enjoying DataFrames.jl so far! I've noticed a slight performance issue, and I propose a quick work around. Assume we `groupby` a const dataset, and we then have to...
This is a small enhancement to make `GroupedDataFrame`s display so that they fit in one screen, like regular `DataFrame`s with many rows. Before, the first and last groups of a...
Related discussion in https://github.com/JuliaData/DataFrames.jl/issues/2384 At least for the subset of Reals where there is no real problem with counting unique values (e.g., integers in contrast with Floats) this should be...
This PR waits for https://github.com/JuliaData/DataAPI.jl/pull/48. I have done an initial implementation. Now we need to discuss for which methods metadata propagation should happen. For now I have implemented it for...
This issue is meant to gather requirements for all `join*` operations regarding the resulting order of rows after the join operation. After we finish the discussion I will implement it...
I propose another `matchmissing=` setting, where `missing` on the left side matches every value on the right, not just `missing` on the right. We don't know which values the `missing`s...
`subset` takes `skipmissing=`: > If skipmissing=false (the default) args are required to produce vectors containing only Bool values. If skipmissing=true, additionally missing is allowed and it is treated as false...