histbreaks: histbreaks

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

histbreaks

Description

Select randomly size breakpoints from breaks. If outer is TRUE then the first and last element of breaks is always included into the returned break points. If size is a vector then first the number of breakpoints is sampled from size.

Usage

histbreaks(breaks, size, outer = TRUE, ...)

Arguments

breaks	numeric: a vector of possible break points
size	integer: number of break points
outer	logical: should be the first and last element of breaks included (default: TRUE)
...	further parameters given if sampling of size is necessary, see base::sample

Value

a vector of breakpoints

Examples

# includes always 100 and 200
histbreaks(seq(100, 200, by=10), 4)
# includes always 100 and 200 and chooses randomly between 3 to 5 bareak points  
histbreaks(seq(100, 200, by=10), 3:5)           
# may not include include 100 and 200
histbreaks(seq(100, 200, by=10), 4, outer=FALSE) 

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