attach
extends attach function,
rank
extends rank function,
stdev
adds stdev function,
termPlot
adds term plot function,
volatility
adds volatility function. }## S3 method for class 'default':
stdev(x, na.rm = FALSE)## S3 method for class 'default':
termPlot(model, \dots)
## S3 method for class 'default':
volatility(object, \dots)