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Danfo.js is an open source, JavaScript library providing high performance, intuitive, and easy to use data structures for manipulating and processing structured data.

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const arr = [200, 400, 600, 800, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, 2000, 2050, 2100, 2150, 2200, 2250, 2300, 2350, 2400,...

bug

I found some bugs whilst using `.append` which I'll try to summarize using shortcode snippets. In addition, some things I found a little unintuitive with the API which could perhaps...

bug
enhancement

**Describe the bug** When opening an excel file, columns with no data in first row are ignored. ![image](https://user-images.githubusercontent.com/15948937/157253499-e0fe55a1-99ea-47af-938d-422c913c58ad.png) **To Reproduce** `dfd.readExcel(remote_url, ).then(df => { df.print() }); ` **Expected behavior** In...

Trying to merge two dfs and overwrite the columns with one df. Using dfd.merge simply renames the duplicate column with _1. Pandas has two functions that provide the required functionality....

enhancement

**Is your feature request related to a problem? Please describe.** Hey folks. I'm starting to do some ML with Deno, and I think it would be a good idea to...

diff and pctChange features added in https://github.com/javascriptdata/danfojs/pull/418 https://github.com/javascriptdata/danfojs/pull/414 only extend to DataFrames. Currently unable to apply to a single column slice without adding extra steps.

**Is your feature request related to a problem? Please describe.** Would it be possible to get the support of the weekNumber function in Datetime **Describe the solution you'd like** For...

enhancement
good first issue

Hello, maybe I'm missing something but groupby aggregations behave inconsistently with DataFrame aggregations, which is a challenge since setting `NaN` values to a default like 0 behaves differently depending on...

This issue is related to #412. Right now, when an empty DataFrame is printed, it just show an empty frame with no information. When #412 gets implemented, it could print...

bug
enhancement

I would like to convert a DataFrame to a JSON object the same way that Pandas does with `to_dict()`. `toJSON()` treats rows as elements in an array, and ignores the...

enhancement
good first issue