corrected ylab1 argument, now using plotmath
removing direct linking to quantmod in help files
new function q_approxfun()
that for a given object
generates function that approximates the quantile function
warnings were added to the risk()
methods if some
necessary moments of the distribution do not exist
citation was added
cols
argument in autoplot()
has been
renamed to ncols
(fix for the partial match of
col
parameter)