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Wilcoxon Signed Rank Calculator

Free online wilcoxon signed rank 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:Wilcoxon 配对符号秩检验工具

Wilcoxon Signed Rank Calculator
处理前 / 样本 1(逗号分隔)
处理后 / 样本 2(逗号分隔,一一配对)

原理:Wilcoxon 符号秩检验对配对差值 dᵢ = xᵢ − yᵢ 的绝对值排秩,再把秩按差值正负分成两组,用正差秩和 W₊ 与理论期望 n(n+1)/4 的偏离构造统计量。它同时利用差值的符号与大小信息,功效高于只看符号的符号检验,是配对 t 检验的非参数替代。

步骤:① 输入两列一一配对的数据;② 点击计算;③ 读出 W、z 与双侧 p 值,p 小于显著性水平时认为两组位置差异显著。

示例:x = (10, 12, 8, 14, 22, 16, 14, 18, 10, 12)、y = (12, 15, 7, 13, 20, 14, 12, 16, 11, 10) 时 W₊ = 36.5、W = 18.5、z = 0.889211827642、p = 0.373889181051;x = (8, 7, 6, 9, 10)、y = (5, 6, 5, 7, 8) 时 W₊ = 15、W = 0、p = 0.056759313747。

注意事项:数据必须成对(两组长度相同);差值为零的对子被剔除,n 是剔除后的有效对数;并列的绝对差取平均秩并用 t³−t 校正方差;z 含 0.5 连续性校正,适合 n 大于等于 8;差值分布需近似对称,强偏态时可改用符号检验。

相关:符号检验计算器只看方向、更稳健;配对场景若满足正态性可用配对 t 检验;Mann-Whitney U 检验计算器处理独立两样本。

How to use the Wilcoxon Signed Rank 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 Wilcoxon Signed Rank 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 2026-10-07

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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