R                       Weekly stock price data
condreg                 Compute the condition number with given penalty
                        parameter
crbulk                  Computes multiple solutions
datasnp                 Standard & Poors index
kgrid                   Return a vector of grid of penalties for
                        cross-validation
ml_solver               Compute shrinkage of eigenvalues for condreg
path_backward           Compute optimal u of Lemma 1 in JRSSB paper
                        using the backward algorithm
path_forward            Compute optimal u of Lemma 1 in JRSSB paper
                        using the forward algorithm
pfweights               Compute optimal portfolio weights
select_condreg          Compute the best condition number regularized
                        based based on cross-validation selected
                        penalty parameter
select_kmax             Selection of penalty parameter based on
                        cross-validation
transcost               Compute transaction cost
