nautilus_analysis/python/statistics/max_drawdown.rs
1// -------------------------------------------------------------------------------------------------
2// Copyright (C) 2015-2025 Nautech Systems Pty Ltd. All rights reserved.
3// https://nautechsystems.io
4//
5// Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6// You may not use this file except in compliance with the License.
7// You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16use std::collections::BTreeMap;
17
18use pyo3::prelude::*;
19
20use super::transform_returns;
21use crate::{statistic::PortfolioStatistic, statistics::max_drawdown::MaxDrawdown};
22
23#[pymethods]
24impl MaxDrawdown {
25 #[new]
26 fn py_new() -> Self {
27 Self::new()
28 }
29
30 #[getter]
31 #[pyo3(name = "name")]
32 fn py_name(&self) -> String {
33 self.name()
34 }
35
36 #[pyo3(name = "calculate_from_returns")]
37 fn py_calculate_from_returns(&self, raw_returns: BTreeMap<u64, f64>) -> Option<f64> {
38 self.calculate_from_returns(&transform_returns(raw_returns))
39 }
40
41 fn __repr__(&self) -> String {
42 format!("MaxDrawdown({})", self.name())
43 }
44}