gapply: gapply

In sigbertklinke/exams2moodle: Access routines to XML Moodle files and helper routines to simplify generating exercises for Moodle from the 'exams' package

gapply

Description

Runs all combinations of elements in ... as parameters of FUN (grid apply). I(.) can be used to avoid that an element is interpreted as a grid value. If an error occurs then the result of FUN will not be stored, you may note missing indices in the returning list.

Usage

gapply(FUN, ..., .simplify = TRUE)

Arguments

FUN	fucntion or character: string naming the function to be called
...	list: arguments to the function call. The names attribute of args gives the argument names
.simplify	logical: should the result be simplified to a data frame if possible? (default: TRUE)

Value

a list or a data frame with the function results

Examples

# 8 function calls: sum(1,3,5), sum(1,3,6), ..., sum(2,4,6)
gapply("sum", 1:2, 3:4, 5:6)
# 4 function calls: sum(1,3,5:6), sum(1,4,5:66), ..., sum(2,4,5:6)
gapply("sum", 1:2, 3:4, I(5:6))

sigbertklinke/exams2moodle documentation built on July 6, 2023, 3:26 p.m.