{"version":"1.0","type":"rich","title":"Amplitude FFT-tremor-analysis-hz","description":"This visualization displays the frequency spectrum of heart rate data from a tremor analysis dataset, plotting raw magnitude against frequency in Hertz. The code uses a custom FFT class to transform 512 samples of heart rate data, then applies an excludeDCandNyquist function to remove DC and Nyquist components. The resulting frequency-domain representation is rendered as a line chart using D3.js, with axes drawn via the responsive-viz-axes library. The x-axis shows frequencies from 0 to the Nyquist frequency (31.25 Hz), while the y-axis displays the computed magnitude values, revealing the dominant frequency components in the tremor signal.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e575c65c8b3d4d00b9dea2551363aed9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}