Function generate_random_mask

src/memory/processing/dimred/pca/mod.rs:328–337

Generate a random boolean mask for gene selection. Creates a boolean vector where `num_random_selection` randomly chosen positions are set to `true`, and all others are `false`. This is used for benchmarking and testing purposes when you want to select a random subset of genes. ## Parameters `n_genes` - Total number of genes in the dataset `num_random_selection` - Number of genes to randomly se

(n_genes: usize, num_random_selection: usize)

/// assert_eq!(mask.iter().filter(|&&x| x).count(), 2000);
/// ```
fn generate_random_mask(n_genes: usize, num_random_selection: usize) -> Vec<bool> {
    let mut rng = rng();
    let uniform = Uniform::new(0, n_genes).unwrap();
    let mut vec = vec![false; num_random_selection];
    for _ in 0..num_random_selection {
        let v = uniform.sample(&mut rng);
        vec[v] = true;
    }
    vec
}