[tests] add student dataset and test case for `arrange` w/ 3 columns · SciNim/Datamancer@e7ecb93

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Using `add` to add rows to a DF individually is very slow. Be sure to only add very few rows using this proc! [User]

Formula (+ (~ subMeanHwy 0.0) (mean df["hwy"])) has a mismatch between given formula kind:

Formula (+ (~ subMeanHwy 0.0) (mean df["hwy"])) has a mismatch between given formula kind:

Formula (~ baz 2) has a mismatch between given formula kind:

Formula (~ μ (el.attenuationCoefficient (col x))) has a mismatch between given formula kind:

imported and not used: 'os' [UnusedImport]

Formula (~ from 0) has a mismatch between given formula kind:

imported and not used: 'json' [UnusedImport]

Node kind nnkIfStmt not implemented for FormulaNode string representation. Node is:

Formula (+ (~ subMeanHwy 0.0) (mean (col hwy))) has a mismatch between given formula kind:

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