Does the Matlab Spearman correlation command rank original data?

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VickyM
VickyM 2015-9-1
回答： Tim Jackman 2015-9-3
Does the following Matlab command rank original data, or does the data need to be ranked manually before using the command?
[rho,pval] = corr(x,y,'type','spearman');

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回答（1 个）

Tim Jackman
Tim Jackman 2015-9-3
The corr command will rank the original data, so you should not need to rank the data before using the command. Also, corr computes p-values for Spearman's rho using either the exact permutation distributions (for small sample sizes), or large-sample approximations.

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