Format decimals and leading zeroes. Adapted from the MOTE package.

A collection of R functions that are widely used by the Petersen
Lab. Included are functions for various purposes, including evaluating the
accuracy of judgments and predictions, performing scoring of assessments,
generating correlation matrices, conversion of data between various types,
data management, psychometric evaluation, extensions related to latent
variable modeling, various plotting capabilities, and other miscellaneous
useful functions. By making the package available, we hope to make our
methods reproducible and replicable by others and to help others perform
their data processing and analysis methods more easily and efficiently. The
codebase is provided in Petersen (2024) <doi:10.5281/zenodo.7602890> and on
CRAN: <doi: 10.32614/CRAN.package.petersenlab>. The package is described in
"Principles of Psychological Assessment: With Applied Examples in R"
(Petersen, 2024, 2025) <doi:10.1201/9781003357421>,
<doi:10.25820/work.007199>, <doi:10.5281/zenodo.6466589>.

Isaac T. Petersen

petersenlab

A Collection of R Functions by the Petersen Lab

Developmental Psychopathology Lab at the University of Iowa 

Angela D. Staples

Johanna Caskey

Philipp Doebler

Loreen Sabel

apa function

<dl><dt>value</dt>
<dd>A set of numeric values, either a single number, vector, or set
of columns.</dd>
<dt>decimals</dt>
<dd>The number of decimal points desired in the output.</dd>
<dt>leading</dt>
<dd>Logical value: <code>TRUE</code> for leading zeroes on decimals
and <code>FALSE</code> for no leading zeroes on decimals. The default is
<code>TRUE</code>.</dd></dl>

Arguments

APA Format — apa

<dl>

<dt>value</dt>
<dd>A set of numeric values, either a single number, vector, or set
of columns.</dd>


<dt>decimals</dt>
<dd>The number of decimal points desired in the output.</dd>


<dt>leading</dt>
<dd>Logical value: <code>TRUE</code> for leading zeroes on decimals
and <code>FALSE</code> for no leading zeroes on decimals. The default is
<code>TRUE</code>.</dd>

</dl>

apa: APA Format

Description

Usage

Value

Arguments

Details

See Also

Examples