If you are getting error Error: Corrupt `grouped_df` using old (< 0.8.0) format. ? Strip off old grouping with `ungroup()` Try pasting the code chunk below right before line 45: metabric_disc_clin_df = ungroup(metabric_disc_clin_df) metabric_disc_expr_df = ungroup(metabric_disc_expr_df) Please take a look at @SameerChannar 's reply below in case you bump into an error "Error in ungroup(metabric_disc_clin_df) : could not find function "ungroup".": https://www.synapse.org/#!Synapse:syn22149791/discussion/threadId=7292&replyId=23031

Created by Milen Nikolov mnikolov
@SameerChannar Thank you!
@SameerChannar thanks - you beat me up to replying!
@aforough I found that installing package "dplyr" fixed our problem.
I am also getting the same error: "Error in ungroup(metabric_disc_clin_df) : could not find function "ungroup"." Is there a fix for this? Thank you.
Hi! When I paste the code in R, I get an error message saying "Error in ungroup(metabric_disc_clin_df) : could not find function "ungroup". What should I do?
Thank you, I will ask during office hour.
@Tara.Maleki is this the section on 'Modeling survival and AURKA expression'? We can start a separate thread on that to keep the discussion separate from the corrupt group_df error, or better yet discuss it during office hours on Monday, if you are available: https://www.synapse.org/#!Synapse:syn22149791/wiki/603817
I need help with line 145, thank you!

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