I need to make a gene enrichment with clusterProfiler tool implemented in R. I have a gene list with only gene names in it. In the data I have now, there was some NAs and I eliminated them with na.omit() function. Now, I have a clear list but I need to make sure that my data doesn't have the same gene names more than one. Later, I need to reunite the truncated data. I couldn't find the right arguments and commands for those procedures.
Sorry for inconvenience, and thank you very much for the help,