Design a class and methods for representing a random data series
data mining
Description
Workshop 6
Designing classes (5%)
In this
workshop, you will design and implement a python class to define the state and
behavior of a class of students.
Learning
outcomes
Upon
successful completion of this workshop, you will have demonstrated the
abilities:
1. Design a class and methods for representing
a random data series
2. Implement the data series class and
its methods to create an object of the class and get basic statistical measures.
3. Design a class and methods to
represent Fibonacci series by extending the random data series.
4. Ensure data encapsulation when
implementing classes.
Instructions
You are to design and implement python class
that stores student’s state and methods to add, update and remove courses from
a course data structure. Complete the python program given the following
instructions.
docstring part
Fill in the
docstring part for each of the class header and each of methods.
Class specifications
Create a
python file named w6.py and place the following template code in that file.
Implement the class student and the associated methods. A docstring for each
function is provided to explain what each method is expected to return.
# -*- coding: utf-8 -*-
"""
BDP200- winter 2020
Workshop 6
student name:
__________________
Student id:
__________________
Total: /50pts
Weight: 5%
"""
"""
File: student.py
class to manage a student's set of courses and grades.
"""
crsCredits={'BDA100': 1,
'BDP200': 2,
'BTP100': 3,
}
gradePoints= {'A+': 4,
'A': 4,
'B+': 3.5,
'B': 3,
'C+': 2.5,
'C': 2,
'D+': 1.5,
'D': 1,
'F': 0
}
class Student(object):
"""Represents a
student."""
def __init__(self, sid, name): #[1pts]
"""initializes the instance variables with student Id sid
and student name. """
self._sid =
self._name=
self._grades={} # holds
crsCode:grade as key:val pair, initialized as empty
def enroll(self, crsCode): #[4pts]
"""returns 1
if crsCode is not in dict grades with adding
the crsCode as key and -1
as grade.
Returns 0 is crsCode is
already a key in dict grades
"""
def setScore(self, crsCode, grade): #[4pts]
"""
returns 1 if crsCode in
dict grades and sets the grade for this course
with the supppied argument
grade.
otherwise it returns 0
"""
def getScore(self, crsCode): #[4pts]
"""
returns the grade for
course crsCode
and -1 if crsCode not found
in grades.
"""
def getsid(self): # [1pt]
""" returns
the student id """
def getName(self): # 1pt
""" returns
the student name """
def calculateGPA(self): # [10pts]
""" returns
the Grade point average (GPA) for a set of courses
given the course credits
and the letter grade and grade points associated
with letter grades. Here
is an example of how it is calculated.
Examples
Course Credit Score Grade Points
Math 4 A+ 4 x 4.3 = 17.2
Physics 2 B 2 x 3 = 6
English 3 A 3 x 4 = 12
Total 9 NA 35.2
GPA 35.2 / 9 = 3.91
"""
def __str__(self): #[10pts]
"""
returns a string by
concatenating the student name, followed by
the list of courses and the
grades and at the end adds pthe GPA.
Within a string concatenation format a float
value as follows:
+ "{0:.2f}".format(my_float_variable)+
"""
Caller code :
Define a
main function right after the class Student definition. Implement the following
within the main function:
Student
object s1: [5pts]
-
Create
object s1 of class student with 1, "Adel" respectively for sid and
name.
-
invoke
method enroll(), then setScore on s1 to
assign letter grade ‘A’ for crsCode ‘BDA100’
-
Invoke
methods enroll(), then setScore() on s1
to assign letter grade ‘C’ for crsCode ‘BDP200’.
Student
object s1: [5pts]
-
Create
object s2 of class student with 2, "Fadel" respectively for sid and
name.
-
invoke
method enroll(), then setScore on
student object s2 to assign letter grade ‘C’ for crsCode ‘BDA100’
-
Invoke
methods enroll(), then setScore() on
student object s2 to assign letter grade
‘D’ for crsCode ‘BDP200’.
Create a
list of student objects and print the student course, grades and the GPA. [5pts]
-
Add
student objects s1 and s2 to a list. Then loop through the list and call the
print function by applying student objects as arguments.
