wd
They represent a decomposition of a function with respect to a wavelet basis. The function will have been interpolated to a grid and these objects represent the discrete wavelet transform wd.
irregwd function. Some other functions that process these kinds of objects also return this class of object (such as threshold.irregwd.)irregwd class of objects has methods for the following generic functions: plot, threshold,accessC and accessD functions and inserted using the putC and putD functions (or more likely, their methods), rather than by the $ operator.
One can use the accessc function to obtain the c component. Mind you, if you want to muck about with coefficients directly, then you'll have to do it yourself by working out what the fl.dbase list means (see first.last for a description.)
irregwd, threshold.irregwd, plot.irregwd,wd