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Enhance delete_column method to improve efficiency of column removal

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Palash Tyagi 2025-05-03 00:26:21 +01:00
parent 20727a2b91
commit 8574d86abc
1 changed files with 5 additions and 5 deletions
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10
src/matrix/mat.rs
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@ -170,12 +170,12 @@ impl<T: Clone> Matrix<T> {
} }
} }
/// Deletes a column from the matrix. /// Deletes a column from the matrix. Panics on out-of-bounds.
/// This is O(N) where N is the number of elements.
pub fn delete_column(&mut self, col: usize) { pub fn delete_column(&mut self, col: usize) {
assert!(col < self.cols, "column index out of bounds"); assert!(col < self.cols, "column index {} out of bounds for {} columns", col, self.cols);
for r in (0..self.rows).rev() { let start = col * self.rows;
self.data.remove(col * self.rows + r); self.data.drain(start..start + self.rows); // Efficient removal
}
self.cols -= 1; self.cols -= 1;
} }