Question

PYTHON please

-Create a function that takes a character chain and returns a histogram in a dictionary format.

• The main program must take a dictionary and display it in alphabetical order.

Note d.get(val1, val2) will return the value of the key val1 from dictionary d, otherwise val2. If we try to access directly d[val1], we get an error if key val1 does not exist.

Answer 1

Your problem statement is not very clear, like what should be the histogram made of. Since you have not provided these details, I am providing the code by making some assumptions. In case of any queries, feel free to reach out via comments section.

CODE

def histogram(chain):

all_freq = {}

for i in chain:

   if i in all_freq:

     all_freq[i] += 1

   else:

     all_freq[i] = 1

print("The histogram is: ")

for key in all_freq:

print(str(key) + " ======> ", end = "")

for i in range(all_freq[key]):

print("*", end = "")

print()

histogram("helloworld")