COUNTING NUMBER OF VOWELS IN A SENTENCE

vowel checker.R

x <- readline(prompt = "Enter Sentence: " )  # Ask user to enter word or sentence
 #split the sentence into characters and store them as list
sentence = as.list(strsplit(x, "" )[[1]])
vowels = list("a","e","i","o","u") # store vowels as a list

# check for vowels in the sentence and print TRUE for every vowel found 
print( vowels %in%  sentence ) 
 # print the letters that appear in the vowel list and sentence list
print((intersect(vowels,sentence)))
# print the length of the string in line 8 which is the number of vowels present
print(length((intersect(vowels,sentence))))