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Entropy Rate Calculator

Free online entropy rate calculator. Enter your values and get instant results with the formula, step-by-step working, a worked example and FAQs — everything runs locally in your browser on Calcton, no signup required.

中文版:马尔可夫熵率计算器

Entropy Rate Calculator
转移矩阵 P(2×2 或 3×3,行 = 当前状态,行和为 1)

原理:马尔可夫链的熵率 H = Σ π_i·H_i,即按平稳分布 π 对每个状态的一步条件熵加权平均——它回答「这条链长期平均每步产生多少比特的新信息」。独立同分布序列的熵率就等于分布熵;完全确定的链熵率为 0。

步骤:① 输入行随机转移矩阵;② 点击计算;③ 读出平稳分布、各状态条件熵与熵率。

示例:P = (0.5, 0.5; 0.25, 0.75) 时 π = (0.333333333333, 0.666666666667)、熵率 = 0.874185416306 比特/步——介于两行熵 1 与 0.811278124459 之间。

注意事项:行和必须为 1 且链需不可约(否则平稳分布不唯一,高斯消元会报奇异);熵率只关心长期行为,与初始状态无关;文本、DNA、股价对数收益都可用熵率度量「每符号平均信息量」。

相关:马尔可夫链平稳分布计算器详解 π 的求解;信息熵计算器是无记忆情形的特例;条件熵计算器给出单步条件熵的定义。

How to use the Entropy Rate Calculator

  1. Fill in the inputs with your own numbers — every field shows what it expects.
  2. The result updates instantly as you type; no "Calculate" click needed.
  3. Read the result card for the main figure, the step-by-step formula, and practical notes.

Frequently asked questions

Is the Entropy Rate Calculator free?

Yes — all math calculators on Calcton are free, with no sign-up required. Your inputs are processed in your browser and never sent to a server.

Is there a Chinese version of this tool?

Yes. Use the Chinese version link above — it is the same calculator with the interface in Simplified Chinese.

References

Formulas and benchmarks used by this calculator follow these published sources.

  1. dlmf.nist.gov
  2. mathworld.wolfram.com
Kevin's profile

KevinContent LeadCalcton Editorial Team · Last updated 2026-10-06

Kevin maintains Calcton's formula verification and content: every calculator cites the standard it implements, worked examples are recomputed programmatically, and health benchmarks follow WHO and international guidelines.

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