R How to apply a plot function to specifics columns of multiple data frames? : Hi i have two data frame Fichier1 and Fichier2 which i got by using this code:

 

       temp = list.files(pattern="*.csv")
    list2env(
      lapply(setNames(temp, make.names(gsub("*.csv$", "", temp))), 
             read.csv), envir = .GlobalEnv)

Now i want to plot specifics columns of my two data frames using lapply again but i can't see how to do it.
