some function

Sample a Few Elements of an Object

Randomly select a few elements of an object, typically a data frame, matrix, vector, or list. If the object is a data frame or a matrix, then rows are sampled.

some(x, ...)

## S3 method for class 'data.frame'
some(x, n=10, cols=NULL, ...)

## S3 method for class 'matrix'
some(x, n=10, cols=NULL, ...)

## Default S3 method:
some(x, n=10, ...)

Arguments

• x: the object to be sampled.
• n: number of elements to sample.
• cols: if NULL, use all columns, if a vector of column names or numbers, use only the columns indicated
• ...: arguments passed down.

Returns

Sampled elements or rows.

Author(s)

John Fox jfox@mcmaster.ca

References

Fox, J. and Weisberg, S. (2019) An R Companion to Applied Regression, Third Edition, Sage.

Note

These functions are adapted from head and tail

in the utils package.

See Also

head, tail, brief.

Examples

some(Duncan)
some(Duncan, cols=names(Duncan)[1:3])