Question

Python Program

For this program the user should be able to enter multiple sequences of X, Y, and Z characters. The sequences should all be the same length.

This program should output the average number and median number of X, Y, and Z characters for the set of sequences.

Example.

Input:

XYYZ

XYYZ

ZZZX

Output:

Average number of Xs: 1

Average number of Ys: 1.33

Average number of Zs: 1.66

Median number of Xs: 1

Median number of Ys: 2

Median number of Zs: 1

Answer 1

from statistics import median,mean

n = int(input("Enter number of sequence :"))

if n<=0:

    print("number of sequence should be positive")

else:

    seqs = []

    for i in range(n):

        seqs.append(input())

    # check all sequence have same length

    is_same = True

    l =  len(seqs[0])

    for s in seqs:

        if len(s) !=l:

            is_same = False

    if is_same == False:

        print("The sequences should all be the same length.")

    else:

        X = []

        Y = []

        Z = []

        for seq in seqs:

            x,y,z = 0,0,0

            for c in seq:

                if c == 'X':

                    x+=1

                if c == 'Y':

                    y+=1

                if c == 'Z':

                    z+=1

            X.append(x)

            Y.append(y)

            Z.append(z)

        print("Average number of Xs:","{0:.2f}".format(mean(X)))

        print("Average number of Ys:","{0:.2f}".format(mean(Y)))

        print("Average number of Zs:","{0:.2f}".format(mean(Z)))

        print("Median number of Xs:",median(X))

        print("Median number of Ys:",median(Y))

        print("Median number of Zs:",median(Z))