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#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <string>
#include <cstdio>
using namespace std;
const int ARRAY_OF_ASCII_CODES_SIZE=256;
const int NUMBER_OF_FILES=8;
void initializeDataArray(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], int nNumberOfFiles, int nASCIICodesSize);
void initializeOutputArray(double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles);
void calculateCosineSimilarity(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles, int nASCIICodesSize);
//Calculates the cosine similarity
void outputCSV(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], int nNumberOfFiles, int nASCIICodesSize, ofstream& fCSV);
//outputs the data array in a csv file
void outputHTML(double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles, int nASCIICodesSize, ofstream& fHTML, char asInputFileNames[][FILENAME_MAX]);
//output the cosine similarity matrix in HTML format
void writeHeader(ofstream& ofHTMLfile);
//writes the HTML header
void writeBody(ofstream& ofHTMLfile, double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles, char asInputFileNames[][FILENAME_MAX]);
void writeFooter(ofstream& ofHTMLfile);
//writes the HTML footer
int main(int argc, char *argv[])
{
ifstream fin;
ofstream fHTML;
ofstream fCSV;
unsigned char cInput=' ';
unsigned int nInput=0;
int anASCIICodes[NUMBER_OF_FILES][ARRAY_OF_ASCII_CODES_SIZE];
double anCosineSimilarity[NUMBER_OF_FILES][NUMBER_OF_FILES];
char asInputFileNames[NUMBER_OF_FILES][FILENAME_MAX]; //array to store filenames
if(argc!=9)
{
cout << "There should be 9 command line arguments." << endl;
cout << "Only" << argc << " arguments were entered" << endl;
exit(1);
}
initializeDataArray(anASCIICodes, NUMBER_OF_FILES, ARRAY_OF_ASCII_CODES_SIZE);
initializeOutputArray(anCosineSimilarity, NUMBER_OF_FILES);
for (int i=1; i<argc; i++) //loop through all the command line arguments, except the first
{
char sExample[3]="ab";
string sTemp="";
cout << "argument " << i << "=" << argv[i] << "\n"; //echo the command line arguments
sTemp=argv[i];
memset(asInputFileNames[(i-1)],'\0', FILENAME_MAX);
memcpy(asInputFileNames[(i-1)], sTemp.c_str(), sTemp.length());
fin.open(asInputFileNames[(i-1)]);
if (fin.fail())
{
cout << "Failure opening input file [" << asInputFileNames[(i-1)] << "].\n";
exit(2);
}
else
{
cout << "Input file [" << asInputFileNames[(i-1)] << "] opened.\n";
}
while (!fin.eof())
{
cInput=fin.get();
nInput=(unsigned int)cInput;
if(nInput>=0 && nInput<ARRAY_OF_ASCII_CODES_SIZE)
{
++anASCIICodes[i-1][nInput];
}
}
fin.close();
}
calculateCosineSimilarity(anASCIICodes, anCosineSimilarity, NUMBER_OF_FILES, ARRAY_OF_ASCII_CODES_SIZE);
fHTML.open("project5.html");
if (fHTML.fail())
{
cout << "Failure opening output file project5.html.\n";
exit(3);
}
fCSV.open("project5.csv");
if (fCSV.fail())
{
cout << "Failure opening output file project5.csv.\n";
exit(4);
}
outputCSV(anASCIICodes, NUMBER_OF_FILES, ARRAY_OF_ASCII_CODES_SIZE, fCSV);
outputHTML(anCosineSimilarity, NUMBER_OF_FILES, ARRAY_OF_ASCII_CODES_SIZE, fHTML, asInputFileNames);
fHTML.close();
fCSV.close();
cout << "End of program.\n";
return 0;
}
void initializeDataArray(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], int nNumberOfFiles, int nASCIICodesSize)
{
for (int i=0; i<nNumberOfFiles; i++)
{
for (int j=0; j<nASCIICodesSize; j++)
{
anASCIICodes[i][j]=0;
}
}
return;
}
void initializeOutputArray(double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles)
{
for (int i=0; i<nNumberOfFiles; i++)
{
for (int j=0; j<nNumberOfFiles; j++)
{
anCosineSimilarity[i][j]=0.0;
}
}
return;
}
void calculateCosineSimilarity(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles, int nASCIICodesSize)
{
double nDotProduct=0;
double nRunningSum=0;
double anLength[NUMBER_OF_FILES];
for (int i=0; i<nNumberOfFiles; i++) //calculate the length of each array
{
nRunningSum=0;
for (int j=0; j<nASCIICodesSize; j++)
{
double nCurrentValue=(double)(anASCIICodes[i][j]);
nRunningSum=nRunningSum+(nCurrentValue*nCurrentValue);
}
anLength[i]=sqrt(nRunningSum);
}
for (int i1=0; i1<nNumberOfFiles; i1++)
{
for (int i2=0; i2<nNumberOfFiles; i2++)
{
nDotProduct=0;
for (int j=0; j<nASCIICodesSize; j++)
{
double nProduct=(anASCIICodes[i1][j]*anASCIICodes[i2][j]);
nDotProduct=nDotProduct+nProduct;
}
double nCS=nDotProduct/(anLength[i1]*anLength[i2]);
anCosineSimilarity[i1][i2]=nCS;
}
}
return;
}
void outputCSV(int anASCIICodes[][ARRAY_OF_ASCII_CODES_SIZE], int nNumberOfFiles, int nASCIICodesSize, ofstream& fCSV)
{
for (int i=0; i<ARRAY_OF_ASCII_CODES_SIZE; i++)
{
fCSV << i;
fCSV.put(',');
}
return;
}
void outputHTML(double anCosineSimilarity[][NUMBER_OF_FILES], int nNumberOfFiles, int nASCIICodesSize, ofstream& fHTML, char asInputFileNames[][FILENAME_MAX])
{
return;
}
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