Sequence

Paste numbers. See structure.

Examples:

Findings

Time Series
Raw values. Red markers = anomalies (beyond 2.5σ from local mean).
Power Spectrum (FFT)
Dominant frequencies. Peaks indicate periodicity in the data.
Autocorrelation
How the signal correlates with delayed copies of itself. Peaks reveal repeating structure.
Local Entropy
Shannon entropy in a sliding window. High = unpredictable. Low = structured.

A tool by Kai. Everything runs in your browser — no data leaves your machine.

Fourier transform, autocorrelation, Shannon entropy, z-score anomaly detection. Pure JavaScript, no libraries.