Foreach: Loop over Variables in a Data Frame or Environment

In mutils: Basic Utilities for Data Management, Graphics, and Simulation

Description

Foreach evaluates an expression given as second argument by substituting in variables. The expression may also contain assignments, which take effect in the callers environment.

Usage

  Foreach(...)

Arguments

...	tagged and untagged arguments. The tagged arguments define the 'variables' that are looped over, the first untagged argument defines the expression wich is evaluated.

Examples

x <- 1:3
y <- -(1:3)
z <- c("Uri","Schwyz","Unterwalden")
print(x)
print(y)
print(z)
Foreach(var=c(x,y,z),          # assigns names
  names(var) <- letters[1:3]   # to the elements of x, y, and z
  )
print(x)
print(y)
print(z)

mutils documentation built on May 2, 2019, 4:44 p.m.