determine_unit

We support the following units of time<dl>
 <dt>&#8220;ns&#8221;, &#8220;nanoseconds&#8221;</dt>
<dd></dd> <dt>&#8220;us&#8221;, &#8220;microseconds&#8221;</dt>
<dd></dd> <dt>&#8220;ms&#8221;, &#8220;milliseconds&#8221;</dt>
<dd></dd> <dt>&#8220;s&#8221;, &#8220;secs&#8221;, &#8220;seconds&#8221;</dt>
<dd></dd> <dt>&#8220;t&#8221;, &#8220;time&#8221;</dt>
<dd>Appropriately prefixed time unit.</dd> <dt>&#8220;eps&#8221;</dt>
<dd>Evaluations per second / Hertz.</dd> <dt>&#8220;hz&#8221;</dt>
<dd>Hertz / evaluations per second.</dd> <dt>&#8220;khz&#8221;</dt>
<dd>Kilohertz / 1000s of evaluations per second.</dd> <dt>&#8220;mhz&#8221;</dt>
<dd>Megahertz / 1000000s of evaluations per second.</dd> <dt>&#8220;f&#8221;, &#8220;frequency&#8221;</dt>
<dd>Appropriately prefixed frequency unit.</dd>
</dl>

internal

Provides infrastructure to accurately measure and compare
the execution time of R expressions.

Joshua Ulrich

microbenchmark

Accurate Timing Functions

Olaf Mersmann

Claudia Beleites

Rainer Hurling

Ari Friedman

determine_unit function

<dl><dt>object</dt>
<dd>A 'microbenchmark' object.</dd>
<dt>unit</dt>
<dd>A unit of time. See details.</dd></dl>

Arguments

Author

We support the following units of time<dl>
 <dt>&#8220;ns&#8221;, &#8220;nanoseconds&#8221;</dt>
<dd></dd>

 <dt>&#8220;us&#8221;, &#8220;microseconds&#8221;</dt>
<dd></dd>

 <dt>&#8220;ms&#8221;, &#8220;milliseconds&#8221;</dt>
<dd></dd>

 <dt>&#8220;s&#8221;, &#8220;secs&#8221;, &#8220;seconds&#8221;</dt>
<dd></dd>

 <dt>&#8220;t&#8221;, &#8220;time&#8221;</dt>
<dd>Appropriately prefixed time unit.</dd>

 <dt>&#8220;eps&#8221;</dt>
<dd>Evaluations per second / Hertz.</dd>

 <dt>&#8220;hz&#8221;</dt>
<dd>Hertz / evaluations per second.</dd>

 <dt>&#8220;khz&#8221;</dt>
<dd>Kilohertz / 1000s of evaluations per second.</dd>

 <dt>&#8220;mhz&#8221;</dt>
<dd>Megahertz / 1000000s of evaluations per second.</dd>

 <dt>&#8220;f&#8221;, &#8220;frequency&#8221;</dt>
<dd>Appropriately prefixed frequency unit.</dd>


</dl>

Normalize timing units to one of the supported values — determine_unit

<dl>

<dt>object</dt>
<dd>A 'microbenchmark' object.</dd>


<dt>unit</dt>
<dd>A unit of time. See details.</dd>

</dl>

determine_unit: Normalize timing units to one of the supported values

Description

Usage

Value

Arguments

Author