# function: getLeadingDigit(num) --> splice 1st char off,
# function: calcFreq(dataList) --> use counted()
# function: calcStats() --> convert frequency / per number to percentage
#                       --> write to calcDataList
# function: printTable() --> write calcDataList: leading digit, frequency(%)
import random
dataList = []
firstDigitList = []

with open("data.txt", "r") as data:
    for line in data:
        dataList.append(int(line.strip("\n")))

def getLeadingDigit(num):
    return int(str(num)[0])

def leadingDigitList(dataList):
    firstDigitList = []
    for item in dataList:
        firstDigitList.append(getLeadingDigit(item))
    return firstDigitList

def calcFreq(firstDigitList):
    for item in range(1, 10):
        print(item, firstDigitList.count(item))

# print(calcFreq(leadingDigitList(dataList)))

def calcStats(firstDigitList):
    percentageFreq = 0
    sum = 0
    percentageList = []
    for item in range(1, 10):
        sum += firstDigitList.count(item)
    print("The total sum is:", sum)

        #sum = sum(firstDigitList.count(item))
    for item in range(1, 10):
        percentageFreq = (((firstDigitList.count(item)) / sum) * 100)
        print(item, str(percentageFreq) + "%")
        percentageList.append(int(round(percentageFreq)))
    #print(percentageList)
    return percentageList

#print("\n")
#print("Percentage frequency values list, rounded to the nearest whole number, is:", calcStats(leadingDigitList(dataList)))


def printTable():
    print("The frequency of 1-9 values in data.txt is:")
    print(calcFreq(leadingDigitList(dataList)), "\n")
    print("List of frequence percentage (1-9), rounded to the nearest whole number, is:", calcStats(leadingDigitList(dataList)))

def main():
    print("This is output from main:")
    printTable()

main()