> importance(rfor.pdp11_t25.comb1,type=1)
          %IncMSE
v1 -0.28956401263
v2  1.92865561147
v3 -0.63443929130
v4  1.58949137047
v5  0.03190940065

I wasn't entirely confident with interpreting these results based on the
documentation.
Could you please interpret?

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