{"provider_name":"Hatena Blog","blog_url":"https://chaos-r.hatenadiary.jp/","published":"2026-01-30 01:35:52","categories":["Fundamentals of Fractal Time Series Analysis","time series analysis","fractional Brownian motion","OFSCA"],"author_name":"chaos_kiyono","title":"Oriented Fractal Scaling Component Analysis (OFSCA): Detection and Decomposition of Direction-Specific Fractal Fluctuations","blog_title":"Ken-Chaos\u2019s Random Notes on R","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/c/chaos_kiyono/20260130/20260130005925.png","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchaos-r.hatenadiary.jp%2Fentry%2F2026%2F01%2F30%2F013552\" title=\"Oriented Fractal Scaling Component Analysis (OFSCA): Detection and Decomposition of Direction-Specific Fractal Fluctuations - Ken-Chaos\u2019s Random Notes on R\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","url":"https://chaos-r.hatenadiary.jp/entry/2026/01/30/013552","type":"rich","version":"1.0","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/chaos_kiyono/","description":"Consider the trajectory of a point that wanders irregularly over time within a two-dimensional (2D) plane. Such two-dimensional trajectories arise naturally in many experimental and observational settings, particularly in the analysis of biological signals. Typical examples include fluctuations of t\u2026"}