029
09.01.2004, 13:28 Uhr
~Gizzzy
Gast
|
Wir ham das jetzt nochmal überarbeitet, vielleicht nicht unbedingt so, wie von euch vorgeschlagen, jetzt sind nur noch drei Linker-Fehler da, und wir wissen nicht wo die herkommen!
MAINDATEI:
| C++: |
#include <stdlib.h>
#include <iostream.h>
#include "PointIo.h"
#include "MeanVarCalculation.h"
int main()
{
float Middle, Varianz;
char File[]="values.dat";
int Anzahl;
Anzahl = getNumberOfDataPoints(File);
Middle=CalculateMean(Anzahl);
cout<< "Der Mittelwert des Vektors beträgt : "<<Middle<< "./n";
Varianz=CalculateVar(Anzahl);
cout<< "Die Varianz des Vektors beträgt : "<<Varianz<< "./n";
return 0;
}
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BERECHNUNGSDATEI :
| C++: |
#include <stdlib.h>
#include "PointIo.h"
int CalculateMean (int xDataOut[])
{
char File[] = "values.dat";
int NumberOfValues, ContentOfFile, *xData, SumOfValues = 0, Mean = 0;
NumberOfValues = getNumberOfDataPoints(File);
xData = new int[NumberOfValues];
ContentOfFile = readDataPoints (File,xData,NumberOfValues);
for(int i = 0; i < NumberOfValues; i++)
{
SumOfValues += ContentOfFile;
}
Mean = SumOfValues/NumberOfValues;
return Mean;
}
int CalculateVar (int xDataOut[])
{
char File[]="values.dat";
int NumberOfValues, a = 0, b = 0, SumOfValues, Mean = 0, Var = 0;
NumberOfValues = getNumberOfDataPoints(File);
for(int i = 0; i < NumberOfValues; i++)
{
SumOfValues += xDataOut[i];
}
Mean=SumOfValues/NumberOfValues;
int DeviationOne[50], DeviationTwo[50]; ;//Abweichungen
do
{
for(int j=0;j<NumberOfValues;j++)
{
if (j>Mean)
{
DeviationOne[j]=(j-Mean)*(j-Mean);
}
if (j<Mean)
{
DeviationTwo[j]=(Mean-j)*(Mean-j);
}
}
} while(NumberOfValues == (a+b));
Var=(DeviationOne[a]+DeviationTwo[ b ])/(NumberOfValues-1);
return Var;
}
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DATEI ZUM AUSLESEN DES VEKTORS :
| C++: |
#include <iostream>
#include <fstream>
using namespace std;
#include "PointIo.h"
// -------------------------------------------------------------------
// getNumberOfDataPoints returns the number of points in the data file
// Input szFileName: ZeroTerminted String which contains the complete Path and FileNAme
// return Value is the number of DataPoints in the File
// negative Values indicate an error
// -1 : File could not be found or openend
// -2 : File has not the correct format
// -------------------------------------------------------------------
int getNumberOfDataPoints(char *values)
{
int NrOfPoints;
ifstream NeueDatei(values,ios::out|ios::in);
if (NeueDatei.fail())
return -1;
NeueDatei >> NrOfPoints;
if (NrOfPoints < 1)
return -2;
NeueDatei.close();
return NrOfPoints;
}
// -------------------------------------------------------------------
// readDataPoints reads data points from a file
// Input : szFileName: ZeroTerminted String which contains the complete Path and FileNAme
// : NrOfPoints: integer to indicate the memory allocation for the points (only for safety reasons)
// Output : xDataOut and yDataOut pointer to allocated memory for the data points to read.
// If the function returns without any error the memory contains the data
// return : ErrorCode
// -1 : File could not be found or openend
// -2 : The saved Number of Data Points are not fitting the requested number
// -3 : ReadError
// -------------------------------------------------------------------
int readDataPoints (char *values, int *xDataOut, int NrOfPoints)
{
int ReadNrOfPoints;
ifstream NeueDatei(values,ios::out|ios::in);
if (NeueDatei.fail())
return -1;
NeueDatei >> ReadNrOfPoints;
if (NrOfPoints != ReadNrOfPoints)
return -2;
int kk;
for (kk = 0; kk < NrOfPoints; kk++)
{
NeueDatei >> xDataOut[kk];
if (!NeueDatei)
return -3;
}
NeueDatei.close();
return 0;
}
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BERECHNUNGS HEADER :
| C++: |
#ifndef MEANVARCALCULATION_IHA_H_
#define MEANVARCALCULATION_IHA_H_
int CalculateMean (int xDataOut);
int CalculateVar (int xDataOut);
#endif
|
AUSLESE HEADER :
| C++: |
/******************************************************************************************
FileName : PointIo.h
Purpose : Read and Write of Data Points
Date Of Creation: 16.12.2003
Modification History :
Version Date Modifications By Whom
0.1 16.12.2003 First Build Joerg Bitzer
******************************************************************************************/
#ifndef POINT_IO_IHA_H_
#define POINT_IO_IHA_H_
// --------------------
// Point Definition
//---------------------
struct Point
{
float x;
};
// -------------------------------------------------------------------
// getNumberOfDataPoints returns the number of points in the data file
// Input szFileName: ZeroTerminted String which contains the complete Path and FileNAme
// return Value is the number of DataPoints in the File
// negative Values indicate an error
// -1 : File could not be found or openend
// -2 : File has not the correct format
// -------------------------------------------------------------------
int getNumberOfDataPoints(char *values);
// -------------------------------------------------------------------
// readDataPoints reads data points from a file
// Input : szFileName: ZeroTerminted String which contains the complete Path and FileNAme
// : NrOfPoints: integer to indicate the memory allocation for the points (only for safety reasons)
// Output : xDataOut and yDataOut pointer to allocated memory for the data points to read.
// If the function returns without any error the memory contains the data
// return : ErrorCode
// -1 : File could not be found or openend
// -2 : The saved Number of Data Points are not fitting the requested number
// -3 : ReadError
// -------------------------------------------------------------------
int readDataPoints (char *values, int *xDataOut, int NrOfPoints);
#endif
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DATA.DAT MESSWERTE DES VEKTORS :
| C++: |
15
2
46
58
96
45
67
34
56
8
98
67
123
43
67
78
|
| Bearbeitung von Pablo: |
[ b ] Fehler behoben
|
Dieser Post wurde am 09.01.2004 um 13:30 Uhr von Pablo editiert. |
