Data sources which read data from a file should inherit from this
xcms package provides classes to read from
This class should be considered virtual and will not work if passed to
loadRaw-methods. The reason it is not explicitly
virtual is that there does not appear to be a way for a class to be
both virtual and have a data part (which lets functions treat objects
as if they were character strings).
This class validates that a file exists at the path given.
xcmsFileSource objects should not be instantiated directly.
Instead, create subclasses and instantiate those.
Object of class
"character". File path
of a file from which to read raw data as the object's data part
"character", from data part.
signature(object = "character"): Create an
xcmsFileSource object referencing the given file name.
Daniel Hackney [email protected]
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