https://akurniawan.github.io/tags/time-series/Recent content in Time-Series on Aditya Kurniawan (Akur)Hugoen-usTue, 26 Aug 2025 00:00:00 +0700https://akurniawan.github.io/posts/btc_regime_eda/Tue, 26 Aug 2025 00:00:00 +0700https://akurniawan.github.io/posts/btc_regime_eda/Bitcoin’s returns are almost unpredictable in the mean, wildly structured in the variance, and nothing like a normal distribution. This is a walk through the checks that establish that, and why they point at Hidden Markov Models.