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In-memory tabular data in Julia

Results 170 DataFrames.jl issues
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This post outlines, briefly, how I would like metadata to work in DataFrames. * Metadata is a property of a column name in a data frame, not the vector itself....

feature
metadata

Should we leave room for metadata on structures? Frank Harrell's Hmisc package allows units and labels to be attached to data.frame columns. People may want to attach other metadata like...

feature
metadata

This issue is opened to finally close the discussions in https://github.com/JuliaData/DataFrames.jl/issues/35 and https://github.com/JuliaData/DataFrames.jl/issues/2276 about metadata and add this feature in 1.4 release. People need metadata on: * data frame level...

feature
metadata

Since more packages want to extend `DataFrame` type what is needed is: * define a minimal API that `AbstractDataFrame` needst to support; * review all code base in DataFrames.jl to...

decision

For interoperability with `DTable` we have discussed with @krynju that it would be nice to add `Reduce` wrapper to the mini-language. The working idea is that `src => Reduce(f) =>...

feature

`DataFrames` is great as an exploration tool, but then when we found something that works I just want to make sure that things are well structured and reproducible. Then is...

decision
feature

I have a function `myfun` that operates on one or more rows from my dataframe, and returns a Tables compliant output. The columns will not always be the same for...

feature

Currently `describe(df, :mean)` is allowed but not `describe(df, mean)`, which would allow users to provide their own describing functions.

feature
non-breaking

Currently we precompile only for `UInt32`.

ecosystem

df.info() in pandas is a useful function ! Hope DataFrames.jl have a same function. ![image](https://user-images.githubusercontent.com/12711073/148682569-49a685b7-af81-4239-a797-d3f43ca68cff.png)

feature