Dear R-Helpers,

I have this dataset:

 YEAR   PRODUCTS cluster
  1       10       2
  2       42       3
  3       25       2
  4       42       3
  5       40       3
  6       45       1
  7       44       1
  8       47       1
  9       42       1


I want to create a subset (when cluster=1),

  YEAR   PRODUCTS cluster
  6       45       1
  7       44       1
  8       47       1
  9       42       1


How can i perform this?


Thank you in advance.


Sergio Della Franca

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