Project 9
Due Date: start of class, Thursday,
April 27, 2006
FINAL DEADLINE FOR ALL PROJECTS! NO projects can be accepted after this
date.
The goal of this project is to develop some
functions that work with arrays, and to use them in an application
program.
Project:
In this project you will write some functions to do simple statistical
operations on a partially-filled array of integer data.
Part 1:
Copy and compile the file SimpleStats.c using ccheck; you will see
that most of the functions are stubbed out; in this part of the project
you will complete the stubbed methods. Test your methods using a
simple test program; instead of bothering to read the data
interactively, your test program can "hard-wire" the data just by
initializing an array and sending it to the functions.
None
of these functions write any output to the console. In each case, numbers is the partially-filled
array that holds
the integer values and howMany
indicates how many values are present. The file also contains selectionSort,
which is fully coded and can be used by other methods (like median).
/*------------------------------------------------------------
| Returns smallest value in array
------------------------------------------------------------*/
int minimum (int numbers[], int howMany)
/*------------------------------------------------------------
| Returns largest value in array
------------------------------------------------------------*/
int maximum (int numbers[], int howMany)
/*------------------------------------------------------------
| Returns average of values in array
------------------------------------------------------------*/
double average (int numbers[], int howMany)
/*------------------------------------------------------------
| Returns median of values in array
| If howMany is odd, returns middle value;
| if howMany is even, returns average of two middle values
------------------------------------------------------------*/
double median (int numbers[], int howMany)
/*------------------------------------------------------------
| selection sort
------------------------------------------------------------*/
void selectionSort (int numbers[], int howMany)
Part 2:
In this part of the project, you'll build a menu-driven application
that uses these functions (but also does more than the functions
provide). The menu
selections will be
R
- read up to 12 integers from project9.dat into an array
in the main program
P - display the contents of the array on the screen
M - compute and display
the
minimum value
X - compute and display the
maximum value
V - compute and display the
average value
D - compute and display the
median value
Q - quit
As a starting point, copy, compile,
and run the simple user-interface file SimpleUI.c.
This is partially coded; you can modify it to meet this project's
requirements. The data will be stored in the file with one number per
line; the first value will indicate the number of data values in the
file. This way you can use a count-controlled loop to read the data.
Note that there is no function for readingthe data -- just code this in
the appropriate section of the main switch statement in the UI.
What to submit
Follow the usual process. No framework bonus this time.
MBF 4/17/06
