Changes to importance.varpro return values

[ehrlinger]

I've recently upgraded to varPro 0.0.71. The importance.varpro function is no longer returning the mean values.

 > vp_rfs_uni <- varpro(
    Surv(ivdead, dead) ~ .,
    data = pred_all %>% filter(repair == "Univentricular") %>%
      select(-repair,-score,-rand_id),
    nvar = 30,
    ntree = ntree,
    seed = 1024
  )

> vp_uni_vimp <- importance.varpro(vp_rfs_uni, plot.it = TRUE)
> vp_uni_vimp
                  z
plavvoeb 0.60404815
plavmcde 0.47362970
paoanne  0.45230914
plvotde  0.28918757
parvlve  0.24750492
plvwdeb  0.05043135
plvotdeb 0.04056809
paoaebsa 0.00000000
paoanneb 0.00000000
plvavape 0.00000000
plvmnide 0.00000000
prvavape 0.00000000