Add Dataframe

[xingularity]

Add a DataFrame facility. A DataFrame is a two-dimensional, size-mutable tabular data structure with labeled axes (rows and columns). This DataFrame should have following capabilities.

1. Store a size-mutable tabular data.
2. With single row and column index (unsigned integer type).
3. Support limited data types first, primarily numerical.
4. Sub DataFrame selection and assignment by index.
5. Sorting data according to specific column and specify order.
6. Search data in DataFrame and return matched index.

[yungyuc]

Thanks @xingularity . The list includes some features but I did not see any analytical calculations like average, variation, etc. Could you think of some as a starting point for development?

[xingularity]

Hi @yungyuc I thin we can start with the following 6 functions.

• count
• mean
• std
• min
• max
• quantile (provide capabilities to get any quantile)

[yungyuc]

@xingularity I convert the issue into a discussion conversation because the scope is too large to be planned. More concrete tasks can be generated from the conversation and we will track them.

A project is tracking the development: https://github.com/orgs/solvcon/projects/6/views/1?pane=info

[tigercosmos]

I can help with this development, but I think I will need to study some background knowledge first. 🤔

[tigercosmos]

@yungyuc btw, the url is broken.

[yungyuc]

I can help with this development, but I think I will need to study some background knowledge first. 🤔

Let's use more discussion for what to do

[yungyuc]

@yungyuc btw, the url is broken.

I can open it after clicking

[tigercosmos]

@xingularity do you have a picture of how to implement it? I think I can follow your design.

[yungyuc]

An old request discussing this can be found in #28