(rng: &mut StdRng, size: usize, null_density: f64)
| 75 | } |
| 76 | |
| 77 | fn create_data(rng: &mut StdRng, size: usize, null_density: f64) -> Vec<Option<f64>> { |
| 78 | (0..size) |
| 79 | .map(|_| { |
| 80 | if rng.random::<f64>() > null_density { |
| 81 | None |
| 82 | } else { |
| 83 | Some(rng.random::<f64>()) |
| 84 | } |
| 85 | }) |
| 86 | .collect() |
| 87 | } |
| 88 | |
| 89 | fn create_record_batch( |
| 90 | schema: SchemaRef, |
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