[R] combining 2 dataframes into a 3rd df, with 1 row for each row in df1 & df2

[Anika Masters]

# 'I need help combining 2 dataframes (df1 & df2) into a 3rd (mydf).
I want the 3rd dataframe to contain 1 row for each row in df1 & df2,
and all the columns in both df1 & df2. # Advice is appreciated. Thank
you.

df1 <- data.frame(matrix(data=c(7, 99, 12) ,  nrow=1 ,  dimnames =
list( NULL ,  c('a' , 'b' , 'd') ) ) )

df2 <- data.frame(matrix(data=c(88, 34, 12, 44, 56) ,  nrow=1 ,
dimnames = list( NULL ,  c('d' , 'b' , 'x' ,  'y', 'c') ) ) )

mydf <- matrix(data = c(7, 99, 'na', 12, 'na', 'na', 'na',
'34','56','88','12','44') , nrow=2 ,  byrow = T, dimnames = list( NULL
,  c('a' , 'b' , 'c' ,  'd', 'x' , 'y' ) ) )

df1
df2
mydf


> df1
  a  b  d
1 7 99 12

> df2
   d  b  x  y  c
1 88 34 12 44 56

> mydf
     a    b    c    d    x    y
[1,] "7"  "99" "na" "12" "na" "na"
[2,] "na" "34" "56" "88" "12" "44"