This function tests a generic_spct object for an attribute that
signals whether the spectral data has been normalized or not after the object
was created.
Value
A logical value indicating if x is normalized or not,
for collections of spectra, a named list with logicals as members.
If x is not a generic_spct or generic_mspct object the
value returned is NA.
Note
While method getNormalized() returns in some cases numeric
values or possibly even character values if stored in attribute
normalized, is_normalized() always returns a logical value
and can be safely used in conditional code clauses.
is_normalised() is another name for is_normalized().
See also
Other rescaling functions:
fscale(),
fshift(),
getNormalized(),
getScaled(),
is_scaled(),
normalize(),
setNormalized(),
setScaled()
Examples
norm_sun.spct <- normalize(sun.spct)
is_normalized(norm_sun.spct)
#> [1] TRUE
norm_sun_evening.mspct <- normalize(sun_evening.mspct[1:3])
str(is_normalized(norm_sun_evening.mspct))
#> List of 3
#> $ time.01: logi TRUE
#> $ time.02: logi TRUE
#> $ time.03: logi TRUE
#> - attr(*, "comment")= chr "Applied function: 'is_normalized'.\n"