Shulou(Shulou.com)06/01 Report--

This article will explain in detail how R language randomly extracts part of the data from the data box. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Randomly extract part of the data from the data box (matrix)

(col.name=colnames (mtcars))

(row.name=rownames (mtcars))

(sam.raw.name=sample (row.name,10,replace=FALSE)) # Row name vectors are not sampled

(sam.col.name=sample (col.name,10,replace=FALSE))

B

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