Set the "response.type" attribute
Function to set by reference the "response.type" attribute of an existing response_spct object.
setResponseType(x, response.type = c("response", "action"))x |
a response_spct object |
response.type |
a character string, either "response" or "action" |
Objects of class response_spct() can contain data for a response
spectrum or an action spectrum. Response spectra are measured using the
same photon (or energy) irradiance at each wavelength. Action spectra are
derived from dose response curves at each wavelength, and responsivity
at each wavelength is expressed as the reciprocal of the photon fluence
required to obtain a fixed level of response.
x
This function alters x itself by reference and in addition returns x
invisibly. If x is not a response_spct object, x is not modified The
behaviour of this function is 'unusual' in that the default for parameter
response.type is used only if x does not already have this
attribute set.
my.spct <- ccd.spct setResponseType(my.spct, "action")
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