R - Str (Structure)

About

Str display compactly the internal structure of an R object.

Str is an alternative for summary

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Example

> v <- c(1,-2,3.3,7,-3)
> str(v)
 num [1:5] 1 -2 3.3 7 -3

where

• num: indicates the numeric class
• [1:5]: from one to 5 elements
• 1 -2 3.3 7 -3: the elements