nautilus_analysis/python/statistics/sharpe_ratio.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::sharpe_ratio::SharpeRatio};
22
23#[pymethods]
24impl SharpeRatio {
25 #[new]
26 #[pyo3(signature = (period=None))]
27 fn py_new(period: Option<usize>) -> Self {
28 Self::new(period)
29 }
30
31 fn __repr__(&self) -> String {
32 format!("SharpeRatio({})", self.name(),)
33 }
34
35 #[getter]
36 #[pyo3(name = "name")]
37 fn py_name(&self) -> String {
38 self.name()
39 }
40
41 #[pyo3(name = "calculate_from_returns")]
42 fn py_calculate_from_returns(&mut self, raw_returns: BTreeMap<u64, f64>) -> Option<f64> {
43 self.calculate_from_returns(&transform_returns(raw_returns))
44 }
45}