For more information about the examples, such as how the Python and Mojo files interact with each other, see the Examples Overview

UMAPExample

Python Code

from PySide6.QtWidgets import QApplication
from pathlib import Path
import sys
sys.path.insert(0, str(Path(__file__).parent.parent))
from mmm_python import *
from umap import UMAP
from sklearn.neighbors import KDTree

app = QApplication([])

mfccs = MBufAnalysis.mfcc({"path": "resources/Shiverer.wav"})
print("MFCC shape:", mfccs.shape)

reducs = UMAP().fit_transform(mfccs)
kdtree = KDTree(reducs)

def get_nearest(view, x, y, button, is_dragging, key, dblclick, step):
    if step is None:
        dist, idx = kdtree.query([[x, y]], k=1)
        view.highlight_index(int(idx[0][0]))
        print(
            f"Nearest idx: {idx[0][0]}, dist: {dist[0][0]:.4f}"
        )

win = MPlot(reducs, mouse_callback=get_nearest)
win.resize(700, 500)
win.show()
app.exec()

Mojo Code