Is there any method to combine data frames properly?

Question

I have a problem with combining data frames which share the same rows. I imported rasters from different folders and converted them into data frames and tried to combine them to

Answer 1

In dplyr you will find the inner_join or left_join functions (using the by = c() parameter to specify the join column).

I'd recommend those as an easy way of linking data, especially if you're familiar with SQL.