Using Lists :
> md <-
c("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w",+
"x", "y","z") # [Here you find “ + ” sign which should come after an
incomplete command line. So whenever you see a “ + ” just type / copy all the
commands from “ > ” presented just before “ + ”’s line and until the next “ > ”
comes.]
> m.list <- list(m.frame,md)
> m.list # [Lists are used in S language just to merge two type of data with
different patterns.]
[[1]]:
c1 c2 c3 mc
r1 1 2 3 Dhaka
r2 4 5 6 Khulna
[[2]]:
[1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s"
"t" "u" "v" "w" "x" "y" "z"
> m.list[[1]][1,2]
[1] 2
> m.list[[2]][22]
[1] "v"
> apply(m.list[[1]][,1:3],2,min)
c1 c2 c3
1 2 3
> apply(m.list[[1]][,1:3],2,mean)
c1 c2 c3
2.5 3.5 4.5
