Unable to merge two dataframes in R - Stack Overflow

You have a white space in amino_acids = c("H ",
"H ", "R ", "R ", "Y ", "Y ") which cauing the problem.

library(dplyr)
df %>% mutate(amino_acids=trimws(amino_acids)) %>% left_join(amino_acid_color)
Usi

#which #left_join(amino_acid_color) #amino_acids #13-feb-2008 #using

https://stackoverflow.com/questions/55846612/unable-to-merge-two-dataframes-in-r https://stackoverflow.com/questions/55846612/unable-to-merge-two-dataframes-in-r

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