I know that the title could be a Little confussing, but basically this is what I want.
Lets supposse I have a a dataframe of this form
P_SEXO P_EDADR COD_ENCUESTAS
   <dbl>   <dbl>         <dbl>
1      2      16            74
2      2       9            75
3      2      18            75
4      2      11            75
5      2      11            76
6      2       1            76
As you can see, theres some values that repeats on COD_ENCUESTAS, this is because its like an índex in another dataframe (df2).
Df2 have a form like this:
COD_ENCUESTAS VA1_ESTRATO
          <dbl>       <dbl>
1           74          24
2           75          23
3           76          12
4           77           23
5           78           14
6           79          11
I want output:
P_SEXO P_EDADR COD_ENCUESTAS    VA1_ESTRTO 
   <dbl>   <dbl>         <dbl>   <dbl>
1      2      16            74    24
2      2       9            75    23
3      2      18            75    23
4      2      11            75    23
5      2      11            76    12
6      2       1            76    12
Thnaks beforehand -lasagna
 
    