orderBy

0th

Percentile

Ordering (sorting) rows of a data frame

Ordering (sorting) rows of a data frame by the certain variables in the data frame. This function is essentially a wrapper for the order() function - the important difference being that variables to order by can be given by a model formula.

Keywords
utilities
Usage
orderBy(formula, data)
Arguments
formula
The right hand side of a formula
data
A data frame
Details

The sign of the terms in the formula determines whether sorting should be ascending or decreasing; see examples below

Value

The ordered data frame

See Also

summaryBy, transformBy, splitBy, lapplyBy,

Aliases
  • orderBy
Examples
data(dietox)
orderBy(~Time+Evit, data=dietox)
## Sort decreasingly by Time
orderBy(~-Time+Evit, data=dietox)
Documentation reproduced from package doBy, version 4.5-15, License: GPL (>= 2)

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