org.beast.helpers

Class Helpers

java.lang.Object

org.beast.helpers.Helpers

public class Helpers
extends java.lang.Object

Class of various helpers.

Author:

jthiele

Constructor Summary

Constructors

Constructor and Description
Helpers()

Method Summary

Modifier and Type	Method and Description
static double	annuity(double capitalvalue, double interestRate, int years) Method to calculate annuity.
static java.lang.String	capitalizeFirstLetter(java.lang.String instring) Method to capitalize the first letter of a string.
static double	discont(double startValue, double interestRate, int years) Method for discounting.
static double	getRealizedAnnuity(java.lang.Integer periodLength, double[] profitMargins, double interestRate) Method to calculate the annuity from yearly profit margins.
static double[]	getRealizedLabourCosts(java.lang.Integer periodLength, double[] yield, double slope, double slopeFactor, double slopeExponent, double yieldBeta0, double yieldBeta1, double area, double areaReference, double areaBeta1, double change) Method to calculate yearly labor costs.
static double[]	getRealizedProfitMargins(java.lang.Integer periodLength, double[] prices, double[] yields, double[] varCosts, double[] labourCosts, double areaPayment) Method to calculate profit margins.
static double[]	getRealizedVarCosts(java.lang.Integer periodLength, double[] yield, double beta0, double beta1, double change) Method to calculate yearly variable costs.
static double[]	getRealizedYields(java.lang.Integer periodLength, java.lang.Integer yieldPeriodLength, java.lang.Integer yield1, java.lang.Integer yield2, java.lang.Double[] yieldFactor) Method to calculate yield of simulation period.
static double[]	getRealizedYields(int periodLength, int harvestInterval, double yield1, double yield2, double yield3, double yield4, double yieldFactor) Method to calculate yield of simulation period.
static java.util.ResourceBundle	loadLanguage(java.lang.String localeStr, java.lang.String path, java.lang.String file) Method to load language files.
static double	prolong(double startValue, double interestRate, int years) Method for prolongation.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Helpers

public Helpers()

Method Detail

loadLanguage

public static java.util.ResourceBundle loadLanguage(java.lang.String localeStr,
                                                    java.lang.String path,
                                                    java.lang.String file)
                                             throws java.net.MalformedURLException

Method to load language files.

Parameters:

localeStr - Language code

path - Path to language file folder

file - Language file name

Returns:

ResourceBundle

Throws:

java.net.MalformedURLException

prolong

public static double prolong(double startValue,
                             double interestRate,
                             int years)

Method for prolongation.

Parameters:

startValue - Value at the beginning

interestRate - Interest rate

years - Number of years to prolongate

Returns:

Prolongated value

discont

public static double discont(double startValue,
                             double interestRate,
                             int years)

Method for discounting.

Parameters:

startValue - Value at the beginning

interestRate - Interest rate

years - Number of years to discount

Returns:

Discounted value

annuity

public static double annuity(double capitalvalue,
                             double interestRate,
                             int years)

Method to calculate annuity.

Parameters:

capitalvalue - Net present value

interestRate - Interest rate

years - Number of years to pay annuity from net present value

Returns:

Annuity

getRealizedYields

public static double[] getRealizedYields(int periodLength,
                                         int harvestInterval,
                                         double yield1,
                                         double yield2,
                                         double yield3,
                                         double yield4,
                                         double yieldFactor)

Method to calculate yield of simulation period.

Parameters:

periodLength - Length of simulation period

harvestInterval - Length of harvesting interval

yield1 - Annual yield in first harvesting interval

yield2 - Annual yield in second harvesting interval

yield3 - Annual yield in third harvesting interval

yield4 - Annual yield in fourth harvesting interval

yieldFactor - Yield correction factor

Returns:

Yield of simulation period

getRealizedYields

public static double[] getRealizedYields(java.lang.Integer periodLength,
                                         java.lang.Integer yieldPeriodLength,
                                         java.lang.Integer yield1,
                                         java.lang.Integer yield2,
                                         java.lang.Double[] yieldFactor)

Method to calculate yield of simulation period.

Parameters:

periodLength - Length of simulation period

yield1 - Annual yield in first harvesting interval

yield2 - Annual yield in second harvesting interval

yieldFactor - Yield correction factor

Returns:

Yield of simulation period

getRealizedVarCosts

public static double[] getRealizedVarCosts(java.lang.Integer periodLength,
                                           double[] yield,
                                           double beta0,
                                           double beta1,
                                           double change)

Method to calculate yearly variable costs.

Parameters:

periodLength - Length of simulation period

yield - List of yearly yields

beta0 - beta0 in cost function

beta1 - beta1 in cost function

change - Annual change percentage

Returns:

List of yearly labor costs

getRealizedLabourCosts

public static double[] getRealizedLabourCosts(java.lang.Integer periodLength,
                                              double[] yield,
                                              double slope,
                                              double slopeFactor,
                                              double slopeExponent,
                                              double yieldBeta0,
                                              double yieldBeta1,
                                              double area,
                                              double areaReference,
                                              double areaBeta1,
                                              double change)

Method to calculate yearly labor costs.

Parameters:

periodLength - Length of simulation period

yield - List of yearly yield

slope - Slope of field

slopeFactor - Factor in slope-based cost correction function

slopeExponent - Exponent in slope-based cost correction function

yieldBeta0 - beta0 in yield-based cost function

yieldBeta1 - beta1 in yield-based cost function

area - Area of field

areaReference - Reference area

areaBeta1 - beta1 of area-based cost correction function

change - Annual change percentage

Returns:

List of yearly labor costs

getRealizedProfitMargins

public static double[] getRealizedProfitMargins(java.lang.Integer periodLength,
                                                double[] prices,
                                                double[] yields,
                                                double[] varCosts,
                                                double[] labourCosts,
                                                double areaPayment)

Method to calculate profit margins.

Parameters:

periodLength - Length of simulation period

prices - List of yearly prices

yields - List of yearly yields

varCosts - List of yearly variable costs

labourCosts - List of yearly labor costs

areaPayment - annual area payment

Returns:

List of yearly profit margin

getRealizedAnnuity

public static double getRealizedAnnuity(java.lang.Integer periodLength,
                                        double[] profitMargins,
                                        double interestRate)

Method to calculate the annuity from yearly profit margins.

Parameters:

periodLength - Length of simulation period

profitMargins - List of yearly profit margins

interestRate - Interest rate

Returns:

Annual annuity

capitalizeFirstLetter

public static java.lang.String capitalizeFirstLetter(java.lang.String instring)

Method to capitalize the first letter of a string.

Parameters:

instring - Input string

Returns:

Output string with first letter capitalized