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  1. #1
    Matthew's Avatar
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    Python Program to Calculate Avg of Numbers in a Text File

    Coded in IDLE. Project was to create a program that read the contents of a .txt file and calculated the avg of all numbers in the file. This was to be done using 2 Higher - Order Functions (mapping and reducing) of your choice. I've test ints and decimals with this program and it has worked perfectly, have not tried putting strings into the test file but I'd assume it wouldn't work for obvious reasons.
    Code:
    import functools
    
    input_File = input('Name of file: ') #ask user for name of file
    file = open(input_File, 'r') #open file
    file = file.read() #read file
    
    file = file.split() #put numbers into list
    
    file = list(map(float, file)) #convert list into floats
    file_Sum = functools.reduce(lambda x, y: x + y, list(file)) #grabs sum of file 
    
    print(file_Sum / len(file)) #average function using file sum from reduce fuction

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    mburhm (07-02-2021)

  3. #2
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    Code:
    file = list(map(float, file)) #convert list into floats
    You can to implement a Try/Except block inside your map function at the point it does the data type conversion. If it throws an exception then just return null or 0 and suppress the error message.

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    Matthew (02-08-2021)

  5. #3
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    Code:
    sum = 0
    input_File = input('Name of file: ')
    file = open(input_File, 'r') 
    file = file.read()
    
    file = file.split()
    total = len(file)
    
    for num in file:
         sum += int(num)
    
    print (f"Average number in {file} is {sum/total}")
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  6. #4
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    good project

  7. #5
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    Yo I like this ,very nice !

  8. #6
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    Thumbs up good project

    good project

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