Function apply_window 

pub fn apply_window(signal: &[f64], window: &[f64]) -> FFTResult<Vec<f64>>

Apply a window function to a signal

Arguments

• signal - The signal to apply the window to
• window - The window function to apply

Returns

A vector containing the windowed signal

Examples

use scirs2_fft::fft::windowing::{apply_window, create_window, WindowType};

// Create a simple signal
let signal = vec![1.0, 2.0, 3.0, 4.0, 3.0, 2.0, 1.0];

// Create a Hann window
let window = create_window(WindowType::Hann, signal.len()).unwrap();

// Apply the window to the signal
let windowed_signal = apply_window(&signal, &window).unwrap();

// Check that the window was applied correctly
assert_eq!(windowed_signal.len(), signal.len());
assert!(windowed_signal[0] < signal[0]); // Edges are attenuated
assert!(windowed_signal[3] <= signal[3]); // Middle is preserved or slightly attenuated