asbisen

Query datetime using `where` interface

7

Is it possible to query on `datetime` columns? The structure of `ctable` is as follows ``` ctable((173185091,), [('medallion', 'S32'), ('hack_license', 'S32'), ('vendor_id', 'S3'), ('rate_code', '

black colorbar (heatmap) on jupyter-notebook

2

**Describe the bug** For some reason only in `jupyter-notebook` colorbar of a heatmap shows up as a black strip. Same code works fine inside `jupyter-lab` and `atom`. Additionally when I...

plotting svg

1

Wondering if such a snippet would come in handy to others? This plots the Plotly plots in SVG. Comes in handy when I export my notebooks to share with others...

option to specify alternative location for `mktemp`

1

Just noticed that while reading gzipped files using `CSV.jl:read()` creates temporary files in `/tmp`. This causes issues in certain scenarios. [Ref](https://github.com/JuliaData/CSV.jl/blob/2c02394b4ce11ee673ed1b6d0c811a98316bc2f9/src/utils.jl#L308) 1. The default directory `/tmp` may not have sufficient...

Fix confusmat error described in issue #35

2

This fix changes the interface to `confusmat` from ```julia confusmat(k::Integer, gts::IntegerVector, preds::IntegerVector) ``` to ```julia function confusmat(gts::IntegerVector, preds::IntegerVector) ``` here `k` is calculated automatically.

confusmat() errors if class contains 0

1

if the classes in `gt` or `pred` contains `0` the function `confusmat` errors out with the following error. ``` gr=[0,1,0,1] pr=[0,0,1,1] confusmat(2, gr, pr) ERROR: BoundsError: attempt to access 2×2...

Naming Convention for FeatureNormalizer

1

`FeatureNormalizer` transforms the matrix `X` using `(X - μ)/σ` which translates to `StandardScaler` in Scikit-Learn. Whereas `Normalize` method in Scikit-Learn scales the data to a unit norm. I was wondering...

performance of subsets()

2

Cross referencing a possible performance issue with `Iterators.subsets()` and `Combinatorics.combinations()` that I posted in `Combinatorics.jl` [https://github.com/JuliaMath/Combinatorics.jl/issues/30](https://github.com/JuliaMath/Combinatorics.jl/issues/30) The performance of `subsets()` seems to be ~2x slower than pure python `Itertools`. Sample...

reading arrow files

20

Is it possible to perform query on arrow files? Julia has a fully featured `Arrow.jl` library using which we can pass a Arrow Table to DuckDB . Something like this...

Performance issue with prepare!( doc, strip_stopwords)

2

Calling `prepare!(StringDocument, strip_case | strip_stopwords)` even on a small ~3.4MB file takes forever to return (other than for small strings I have not seen this function finishing successfully). ```julia function...