sorting
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
Research direction
Start with the issue's sort_matrix example and the ndarray APIs around Axis selection. The request leaves column, row, and n-dimensional sorting scope unresolved, and names no files or tests; clarify the supported behavior and completion criteria with maintainers before locating an implementation point.
Written by the indexing model from the issue text.
Description
For a project I'm working on, I wrote a function that sorts a 2d matrix by the values in a particular column. Wanted to see if you were interested in generalizing this for ndarray (e.g. sort by row value, n-dimensional sorting etc).
pub fn sort_matrix(mat : Mat<f64>, sort_col: ArrayView<f64,Ix>) -> Mat<f64>{
let mut enum_col = sort_col.iter().enumerate().collect::<Vec<(usize, &f64)>>();
enum_col.sort_by(|a, &b| a.1.partial_cmp(b.1).unwrap());
let indices = enum_col.iter().map(|x| x.0).collect::<Vec<usize>>();
mat.select(Axis(0), indices.as_slice())
}
- Dominant language
- Rust
- Stars
- 4.3k
- Forks
- 391
- PR merge metrics
- No merged PRs in 30d
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
More from rust-ndarray/ndarray
-
Difficulty 2/5 1-3 hours Newbie friendliness 72/100
rust-ndarray/ndarray#1612 · 1 comment ·
-
Difficulty 4/5 3-5 days Newbie friendliness 48/100
rust-ndarray/ndarray#1617 · 1 comment ·
-
bug good first issue
Difficulty 3/5 1-2 days Newbie friendliness 68/100
rust-ndarray/ndarray#1615 · 1 comment ·
-
Difficulty 4/5 3-5 days Newbie friendliness 48/100
rust-ndarray/ndarray#1610 ·
-
Difficulty 3/5 1-2 days Newbie friendliness 72/100
rust-ndarray/ndarray#1609 ·
All issues in rust-ndarray/ndarray
Similar issues
-
Difficulty 2/5 1-3 hours Newbie friendliness 86/100
kwakseongjae/auto-hwp#319 ·
-
area:cli bug filter-quality good first issue priority:medium
Difficulty 2/5 1-3 hours Newbie friendliness 84/100
-
Difficulty 1/5 Under an hour Newbie friendliness 72/100
bevyengine/bevy#25861 ·
-
comp-datalake
Difficulty 2/5 1-3 hours Newbie friendliness 88/100
ClickHouse/ClickHouse#121222 ·
-
enhancement remote
Difficulty 2/5 1-3 hours Newbie friendliness 68/100