Signif

This function adapts base-function <code><a href="/link/signif?package=VFP&version=1.4.1" data-mini-rdoc="VFP::signif">signif</a></code>
by always returning integer values in case the number of
requested significant digits is less than the the number of
digits in front of the decimal separator.

Variance function estimation for models proposed by W. Sadler in his variance function program
('VFP', <http://www.aacb.asn.au/resources/useful-tools/variance-function-program-v14>). Here, the idea is
to fit multiple variance functions to a data set and consequently assess which function reflects
the relationship 'Var ~ Mean' best. For 'in-vitro diagnostic' ('IVD') assays modeling this relationship
is of great importance when individual test-results are used for defining follow-up treatment of patients.

Andre Schuetzenmeister

Variance Function Program

Florian Dufey

Andrea Geistanger

Signif function

<dl><dt>x</dt>
<dd>(numeric) value to be rounded to the desired number
of significant digits</dd>
<dt>digits</dt>
<dd>(integer) number of significant digits</dd>
<dt>force</dt>
<dd>(logical) TRUE = force the return value to have at least 4 significant
digits, i.e. to integers with less digits zeros will be appended after
the decimal separator, otherwise the return value will be casted from
character to numeric</dd>
<dt>...</dt>
<dd>additional parameters</dd></dl>

Arguments

Andre Schuetzenmeister <a href="/link/andre.schuetzenmeister%40roche.com?package=VFP&version=1.4.1" data-mini-rdoc="VFP::andre.schuetzenmeister@roche.com">andre.schuetzenmeister@roche.com</a>

Author

This function adapts base-function <code><a href='https://rdrr.io/r/base/Round.html'>signif</a></code>
by always returning integer values in case the number of
requested significant digits is less than the the number of
digits in front of the decimal separator.

Adapted Version of Function 'signif' — Signif

<dl>

<dt>x</dt>
<dd>(numeric) value to be rounded to the desired number
of significant digits</dd>


<dt>digits</dt>
<dd>(integer) number of significant digits</dd>


<dt>force</dt>
<dd>(logical) TRUE = force the return value to have at least 4 significant
digits, i.e. to integers with less digits zeros will be appended after
the decimal separator, otherwise the return value will be casted from
character to numeric</dd>


<dt>...</dt>
<dd>additional parameters</dd>

</dl>

Andre Schuetzenmeister <a href='mailto:andre.schuetzenmeister@roche.com'>andre.schuetzenmeister@roche.com</a>

Signif: Adapted Version of Function 'signif'

Description

Usage

Value

Arguments

Author