Slip 4 - E) Write an R program to extract first 10 English letter in lower case and last 10 letters in upper case and extract letters between 22nd to 24th letters in upper case.

 Solution:

print("First 10 letters in lower case:")

t = head(letters, 10)

print(t)

print("Last 10 letters in upper case:")

t = tail(LETTERS, 10)

print(t)

print("Letters between 22nd to 24th letters in upper case:")

e = tail(LETTERS[22:24])

print(e)