nautilus_indicators/python/momentum/
bias.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 nautilus_core::python::to_pyvalue_err;
17use nautilus_model::data::{Bar, QuoteTick, TradeTick};
18use pyo3::prelude::*;
19
20use crate::{
21    average::MovingAverageType, indicator::Indicator, momentum::bias::Bias, python::float_precision,
22};
23
24#[pymethods]
25#[pyo3_stub_gen::derive::gen_stub_pymethods]
26impl Bias {
27    /// Percentage difference between price and its moving average.
28    #[new]
29    #[pyo3(signature = (period, ma_type=None))]
30    pub fn py_new(period: usize, ma_type: Option<MovingAverageType>) -> PyResult<Self> {
31        Self::new_checked(period, ma_type).map_err(to_pyvalue_err)
32    }
33
34    fn __repr__(&self) -> String {
35        format!("Bias({})", self.period)
36    }
37
38    #[getter]
39    #[pyo3(name = "name")]
40    fn py_name(&self) -> String {
41        self.name()
42    }
43
44    #[getter]
45    #[pyo3(name = "period")]
46    const fn py_period(&self) -> usize {
47        self.period
48    }
49
50    #[getter]
51    #[pyo3(name = "has_inputs")]
52    fn py_has_inputs(&self) -> bool {
53        self.has_inputs()
54    }
55
56    #[getter]
57    #[pyo3(name = "count")]
58    const fn py_count(&self) -> usize {
59        self.count
60    }
61
62    #[getter]
63    #[pyo3(name = "value")]
64    const fn py_value(&self) -> f64 {
65        self.value
66    }
67
68    #[getter]
69    #[pyo3(name = "initialized")]
70    const fn py_initialized(&self) -> bool {
71        self.initialized
72    }
73
74    #[pyo3(name = "update_raw")]
75    fn py_update_raw(&mut self, close: f64) {
76        self.update_raw(close);
77    }
78
79    #[pyo3(name = "handle_quote_tick")]
80    fn py_handle_quote_tick(&mut self, quote: &QuoteTick) -> PyResult<()> {
81        self.handle_quote(quote).map_err(to_pyvalue_err)
82    }
83
84    #[pyo3(name = "handle_trade_tick")]
85    fn py_handle_trade_tick(&mut self, trade: &TradeTick) {
86        self.handle_trade(trade);
87    }
88
89    #[pyo3(name = "handle_bar")]
90    fn py_handle_bar(&mut self, bar: &Bar) -> PyResult<()> {
91        float_precision::check_bar(bar)?;
92        self.handle_bar(bar);
93        Ok(())
94    }
95
96    #[pyo3(name = "reset")]
97    fn py_reset(&mut self) {
98        self.reset();
99    }
100}
nautilus_indicators/python/momentum/bias.rs

nautilus_indicators/python/momentum/
bias.rs
