How align identical sequence from two dataframe in a new dataframe ?

Question

[Gautier]

Hello everyone,

I have two dataframe with amino acid sequence and their related frequence in my sample. I would like to create a new dataframe with the amino acid sequence and their related frequence in both sample when the sequence is present in both sample. I'm using Rstudio but I don't know how to match each equal sample.

Thank you in advance for your very appreciate help !

[ATpoint]

Please read the output of ?merge.data.frame() and its examples on how to merge data.frames when one column is matched between the two objects.