robin-sparkless 4.4.0

PySpark-like DataFrame API in Rust on Polars; no JVM.
Documentation 
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{
  "test_id": "math_sin",
  "pyspark_version": "3.5",
  "generated_at": "2025-10-27T14:13:12.277964",
  "input_data": [
    {
      "id": 1,
      "a": 5,
      "b": 3,
      "c": 7,
      "angle": 0.785,
      "value": 4.5
    },
    {
      "id": 2,
      "a": 2,
      "b": 8,
      "c": 1,
      "angle": 1.57,
      "value": 3.2
    },
    {
      "id": 3,
      "a": 9,
      "b": 4,
      "c": 6,
      "angle": 0.0,
      "value": 7.8
    }
  ],
  "operation": "DataFrame operation: math_sin",
  "expected_output": {
    "schema": {
      "field_count": 1,
      "field_names": [
        "SIN(angle)"
      ],
      "field_types": [
        "double"
      ],
      "fields": [
        {
          "name": "SIN(angle)",
          "type": "double",
          "nullable": true
        }
      ]
    },
    "data": [
      {
        "SIN(angle)": 0.706825181105366
      },
      {
        "SIN(angle)": 0.9999996829318346
      },
      {
        "SIN(angle)": 0.0
      }
    ],
    "row_count": 3
  }
}