convertTimeUnit

Function to set the "time.unit" attribute and simultaneously rescaling the
spectral data to be expressed using the new time unit as basis of expression.
The change is done by reference ('in place').

Definitions of classes, methods, operators and functions for use
in photobiology and radiation meteorology and climatology. Calculation of
effective (weighted) and not-weighted irradiances/doses, fluence rates,
transmittance, reflectance, absorptance, absorbance and diverse ratios and
other derived quantities from spectral data. Local maxima and minima: peaks,
valleys and spikes. Conversion between energy-and photon-based units.
Wavelength interpolation. Astronomical calculations related solar angles and
day length. Colours and vision. This package is part of the 'r4photobiology'
suite, Aphalo, P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Pedro Aphalo

photobiology

Photobiological Calculations

Pedro J. Aphalo

Titta K. Kotilainen

Glenn Davis

Agnese Fazio

convertTimeUnit function

<dl><dt>x</dt>
<dd>source_spct or response_spct object</dd>
<dt>time.unit</dt>
<dd>a character string, either "second", "hour", "day",
"exposure" or "none", or a lubridate::duration</dd>
<dt>...</dt>
<dd>(currently ignored)</dd></dl>

Arguments

Convert the "time.unit" attribute of an existing source_spct object — convertTimeUnit

<dl>

<dt>x</dt>
<dd>source_spct or response_spct object</dd>


<dt>time.unit</dt>
<dd>a character string, either "second", "hour", "day",
"exposure" or "none", or a lubridate::duration</dd>


<dt>...</dt>
<dd>(currently ignored)</dd>

</dl>

convertTimeUnit: Convert the "time.unit" attribute of an existing source_spct object

Description

Usage

Value

Arguments

See Also

Examples