nautilus_analysis/python/statistics/cagr.rs
1// -------------------------------------------------------------------------------------------------
2// Copyright (C) 2015-2026 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 nautilus_model::position::Position;
19use pyo3::prelude::*;
20
21use super::transform_returns;
22use crate::{statistic::PortfolioStatistic, statistics::cagr::CAGR};
23
24#[pymethods]
25#[pyo3_stub_gen::derive::gen_stub_pymethods]
26impl CAGR {
27 /// Calculates the Compound Annual Growth Rate (CAGR) for returns.
28 ///
29 /// CAGR represents the mean annual growth rate of an investment over a specified period,
30 /// assuming the profits were reinvested at the end of each period.
31 ///
32 /// Formula: CAGR = (Ending Value / Beginning Value)^(Period/Days) - 1
33 ///
34 /// For returns: CAGR = ((1 + Total Return)^(Period/Days)) - 1
35 ///
36 /// # References
37 ///
38 /// - Bacon, C. R. (2008). *Practical Portfolio Performance Measurement and Attribution*
39 /// (2nd ed.). Wiley.
40 /// - CFA Institute Level I Curriculum: Quantitative Methods
41 #[new]
42 #[pyo3(signature = (period=None))]
43 fn py_new(period: Option<usize>) -> Self {
44 Self::new(period)
45 }
46
47 #[getter]
48 #[pyo3(name = "name")]
49 fn py_name(&self) -> String {
50 self.name()
51 }
52
53 #[pyo3(name = "calculate_from_returns")]
54 #[expect(clippy::needless_pass_by_value)]
55 fn py_calculate_from_returns(&self, raw_returns: BTreeMap<u64, f64>) -> Option<f64> {
56 self.calculate_from_returns(&transform_returns(&raw_returns))
57 }
58
59 #[pyo3(name = "calculate_from_realized_pnls")]
60 fn py_calculate_from_realized_pnls(&self, _realized_pnls: Vec<f64>) -> Option<f64> {
61 None
62 }
63
64 #[pyo3(name = "calculate_from_positions")]
65 fn py_calculate_from_positions(&self, _positions: Vec<Position>) -> Option<f64> {
66 None
67 }
68
69 fn __repr__(&self) -> String {
70 format!("CAGR({})", self.name())
71 }
72}