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/***************************************************************************
mutil.cpp - Kugar utlity class
-------------------
begin : Tue Aug 17 1999
copyright : (C) 1999 by Mutiny Bay Software
email : info@mutinybaysoftware.com
copyright : (C) 2002 Alexander Dymo
email : cloudtemple@mksat.net
***************************************************************************/
#include <math.h>
#include "mutil.h"
namespace Kugar
{
/** Formats a date using one of the pre-defined formats */
QString MUtil::formatDate( const QDate& value, int format )
{
QString string;
QString month, day, year;
// Reformat date parts - not necessarily required
month.setNum( value.month() );
day.setNum( value.day() );
// Add leading zeros to month and day
if ( value.month() < 10 )
month = "0" + month;
if ( value.day() < 10 )
day = "0" + day;
// Create a two digit year
year.setNum( value.year() );
year = year.right( 2 );
// Create the formatted date string
switch ( format )
{
case MUtil::MDY_SLASH:
string = QString( "%1/%2/%3" ).arg( value.month() ).arg( value.day() ).arg( year );
break;
case MUtil::MDY_DASH:
string = QString( "%1-%2-%3" ).arg( value.month() ).arg( value.day() ).arg( year );
break;
case MUtil::MMDDY_SLASH:
string = QString( "%1/%2/%3" ).arg( month ).arg( day ).arg( year );
break;
case MUtil::MMDDY_DASH:
string = QString( "%1-%2-%3" ).arg( month ).arg( day ).arg( year );
break;
case MUtil::MDYYYY_SLASH:
string = QString( "%1/%2/%3" ).arg( value.month() ).arg( value.day() ).arg( value.year() );
break;
case MUtil::MDYYYY_DASH:
string = QString( "%1-%2-%3" ).arg( value.month() ).arg( value.day() ).arg( value.year() );
break;
case MUtil::MMDDYYYY_SLASH:
string = QString( "%1/%2/%3" ).arg( month ).arg( day ).arg( value.year() );
break;
case MUtil::MMDDYYYY_DASH:
string = QString( "%1-%2-%3" ).arg( month ).arg( day ).arg( value.year() );
break;
case MUtil::YYYYMD_SLASH:
string = QString( "%1/%2/%3" ).arg( value.year() ).arg( value.month() ).arg( value.day() );
break;
case MUtil::YYYYMD_DASH:
string = QString( "%1-%2-%3" ).arg( value.year() ).arg( value.month() ).arg( value.day() );
break;
case MUtil::DDMMYY_PERIOD:
string = QString( "%1.%2.%3" ).arg( day ).arg( month ).arg( year );
break;
case MUtil::DDMMYYYY_PERIOD:
string = QString( "%1.%2.%3" ).arg( day ).arg( month ).arg( value.year() );
break;
default:
string = value.toString();
}
return string;
}
/** Returns the count for an array of doubles */
int MUtil::count( QMemArray<double>* values )
{
return values->size();
}
/** Returns the sum for an array of doubles */
double MUtil::sum( QMemArray<double>* values )
{
double tmpSum = 0.0;
int size = count( values );
for ( int i = 0; i < size; i++ )
tmpSum += values->at( i );
return tmpSum;
}
/** Returns the average value for an array of doubles */
double MUtil::average( QMemArray<double>* values )
{
return sum( values ) / count( values );
}
/** Returns the variance for an array of doubles */
double MUtil::variance( QMemArray<double>* values )
{
double tmpVar = 0.0;
double tmpAvg = average( values );
int size = count( values );
for ( int i = 0; i < size; i++ )
tmpVar += pow( ( values->at( i ) - tmpAvg ), 2 ) / size;
return tmpVar;
}
/** Returns the standard deviation for an array of doubles */
double MUtil::stdDeviation( QMemArray<double>* values )
{
return sqrt( variance( values ) );
}
}
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