combine 2 dataframes having different column names

Question

In R ,I have 2 data frames both having different column name. I want to combine the rows of each data frame according to the column number. the dataframes i have is as follows<

Answer 1

If it's this simple I'd be inclined to use:

colnames(d1) <- colnames(d2) <- c("ticker", "value")
rbind.data.frame(d1, d2)