pdensity

sample_density

Creates a linear (<code>power=1</code>) or constant (<code>power=0</code>) density function in a interval $$[a, b]$$ where
<code>a</code> and <code>b</code> are sampled from <code>x</code>. It samples <code>size</code> elements without replacement and computes
the value of the distribution function.

The main aim is to further facilitate the creation of exercises based on the package 'exams'
by Grün, B., and Zeileis, A. (2009) <doi:10.18637/jss.v029.i10>. Creating effective student exercises
involves challenges such as creating appropriate data sets and ensuring access to intermediate values
for accurate explanation of solutions. The functionality includes the generation of univariate and
bivariate data including simple time series, functions for theoretical distributions and their approximation,
statistical and mathematical calculations for tasks in basic statistics courses as well as general tasks
such as string manipulation, LaTeX/HTML formatting and the editing of XML task files for 'Moodle'.

Sigbert Klinke

exams.forge

Support for Compiling Examination Tasks using the 'exams'
Package

pdensity function

<dl><dt>x</dt>
<dd>numeric: range of density with $a=min(x, na.rm=TRUE)$ and $b=max(x, na.rm=TRUE)$</dd>
<dt>size</dt>
<dd>numeric: number of elements to be sampled (without replacement) from x</dd>
<dt>power</dt>
<dd>numeric: constant or linear density function</dd>
<dt>tol</dt>
<dd>numeric: disallow for density coefficients near zero (default: <code>1e-6</code>). A negative value will permit zero coefficients.</dd></dl>

Arguments

Density Function — pdensity

<dl>

<dt>x</dt>
<dd>numeric: range of density with $a=min(x, na.rm=TRUE)$ and $b=max(x, na.rm=TRUE)$</dd>


<dt>size</dt>
<dd>numeric: number of elements to be sampled (without replacement) from x</dd>


<dt>power</dt>
<dd>numeric: constant or linear density function</dd>


<dt>tol</dt>
<dd>numeric: disallow for density coefficients near zero (default: <code>1e-6</code>). A negative value will permit zero coefficients.</dd>

</dl>

pdensity: Density Function

Description

Usage

Value

Arguments

Examples