Python | Maximum frequency character in String
This article gives us the methods to find the frequency of maximum occurring character in a python string. This is quite important utility nowdays and knowledge of it is always useful. Let’s discuss certain ways in which this task can be performed.
Method 1 : Naive method + max()
In this method, we simply iterate through the string and form a key in a dictionary of newly occurred element or if element is already occurred, we increase its value by 1. We find maximum occurring character by using max() on values.
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# Python 3 code to demonstrate # Maximum frequency character in String# naive method # initializing string test_str = "GeeksforGeeks" # printing original stringprint ("The original string is : " + test_str) # using naive method to get# Maximum frequency character in Stringall_freq = {}for i in test_str: if i in all_freq: all_freq[i] += 1 else: all_freq[i] = 1res = max(all_freq, key = all_freq.get) # printing result print ("The maximum of all characters in GeeksforGeeks is : " + str(res)) |
The original string is : GeeksforGeeks The maximum of all characters in GeeksforGeeks is : e
Method 2 : Using collections.Counter() + max()
The most suggested method that could be used to find all occurrences is this method, this actually gets all element frequency and could also be used to print single element frequency if required. We find maximum occurring character by using max() on values.
# Python 3 code to demonstrate # Maximum frequency character in String# collections.Counter() + max()from collections import Counter # initializing string test_str = "GeeksforGeeks" # printing original stringprint ("The original string is : " + test_str) # using collections.Counter() + max() to get # Maximum frequency character in Stringres = Counter(test_str)res = max(res, key = res.get) # printing result print ("The maximum of all characters in GeeksforGeeks is : " + str(res)) |
The original string is : GeeksforGeeks The maximum of all characters in GeeksforGeeks is : e
