r - How do I eliminate rows by group? -

say have tbl this, grouped var1:

var1 var2    2    3    0 b    0 b    2 b    1 c    0 c    0 c    0 

i wondering if there's way rid of groups zeros in var2, example in data set group c should removed, this:

var1 var2    2    3    0 b    0 b    2 b    1 

is there easy way using dplyr? answer using functions in dplyr , tidyr, connected %>%.

try like:

library('dplyr') tbl %>%     group_by(var1) %>%    filter(!all(var2 == 0))