字符频率分析器 与相关工具对比:该用哪一个
这个工具与相邻工具的区别,以及判断你的任务需要哪一个的具体依据。
使用方法
- 先弄清下游消费方真正期望什么——格式、编码、校验和,还是人类可读的标签。
- 把该期望与"输出已是该形式"的工具对应起来;转换两次会丢失信息。
- 当两个工具看似等价时,优先选择其选项能暴露消费方所引用标准的那一个。
- 把相关工具并排打开,用同一输入分别运行;差异会立刻显现。
示例
A pangram: every letter appears, so the entropy is close to the maximum for English text.
输入
the quick brown fox jumps over the lazy dog
输出 — 搜索结果
43 characters, 27 distinct Top 27: ␣ U+0020 8 18.60% ████████████████████████ o U+006F 4 9.30% ████████████ e U+0065 3 6.98% █████████ h U+0068 2 4.65% ██████ r U+0072 2 4.65% ██████ t U+0074 2 4.65% ██████ u U+0075 2 4.65% ██████ a U+0061 1 2.33% ███ b U+0062 1 2.33% ███ c U+0063 1 2.33% ███ d U+0064 1 2.33% ███ f U+0066 1 2.33% ███ g U+0067 1 2.33% ███ i U+0069 1 2.33% ███ j U+006A 1 2.33% ███ k U+006B 1 2.33% ███ l U+006C 1 2.33% ███ m U+006D 1 2.33% ███ n U+006E 1 2.33% ███ p U+0070 1 2.33% ███ q U+0071 1 2.33% ███ s U+0073 1 2.33% ███ v U+0076 1 2.33% ███ w U+0077 1 2.33% ███ x U+0078 1 2.33% ███ y U+0079 1 2.33% ███ z U+007A 1 2.33% ███ Shannon entropy: 4.3855 bits/character (8.0 would mean perfectly random bytes; English prose is typically 4.0–4.5)
运行
说明
Count characters, words, line lengths or n-grams and compute Shannon entropy.
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