util
Class ColumnCalculator

java.lang.Object
  util.CommandLineParser
      util.ColumnCalculator

public class ColumnCalculator
extends CommandLineParser

This class acts like a column reader and re-formatter, but allows also some calculations to be done with the columns. The "-col" switch defines the columns to read, they are addressable via n variable names t1, t2, t3,...,tn. If an expression via "-calc" is given, it must follow the format t1*t2,t3-t1,...,exp_mresulting in m new columns. If number formats are given with -nf, their number must match the number of expressions rather than columns read. If -o is given, the data is writtn to that file, otherwise they are dumped to standard out.

Nested Class Summary

Nested classes/interfaces inherited from class util.CommandLineParser

CommandLineParser.Test

Field Summary

private static String	FOOT The footer message.
private static String	ONESWITCHES The switches.
private static Map<String,String>	USE The usage map.

Constructor Summary

ColumnCalculator()
Constructs a new column calculator.

Method Summary

private static Double	evaluate(String expression, Map<String,Double> vars) Evaluates a single expression giving the variables as name value pairs in the map.
static void	main(String[] arg) Entry point.
boolean	process(String[] arg) Processes the command line arguments.
VectorG	v841CenR(Map<String,Double> tdv) The fit for V841Cen, sIRAIT campaign in July, 2007, Dome-C.
VectorG	v841CenV(Map<String,Double> tdv) The fit for V841Cen, sIRAIT campaign in July, 2007, Dome-C.

Methods inherited from class util.CommandLineParser

getArguments, getCommandLine, getCommands, getRegisteredSwitches, hasAnySwitch, hasSwitch, hasSwitch, haveAllSwitches, parse, printCommandLine, registerLine, registerSwitches, setCommands, staticUsage, usage

Methods inherited from class java.lang.Object

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

Field Detail

ONESWITCHES

private static final String ONESWITCHES

The switches.

See Also:

Constant Field Values

USE

private static final Map<String,String> USE

The usage map.

FOOT

private static final String FOOT

The footer message.

See Also:

Constant Field Values

Constructor Detail

ColumnCalculator

public ColumnCalculator()

Constructs a new column calculator. The command line switches understood are registered here.

Method Detail

process

public boolean process(String[] arg)
                throws ParseException,
                       IOException

Processes the command line arguments. First, the file is read for double columns. Then, calculations are performed and data is directly put out.

Throws:

ParseException

IOException

evaluate

private static Double evaluate(String expression,
                               Map<String,Double> vars)
                        throws ParseException

Evaluates a single expression giving the variables as name value pairs in the map.

Throws:

ParseException

v841CenV

public VectorG v841CenV(Map<String,Double> tdv)

The fit for V841Cen, sIRAIT campaign in July, 2007, Dome-C. We have a varaible t1 which is HJD-2454000.0 and a variable t2 which is the Vmag of V841-V1034, t3 is the error of the measure. We return a 'polished' magnitude and an area indicator. The magnitude is polished in the following way, where x and y are HJD minus average HJD and y is differentail magnitude minus average. The following areas could be distinguished:

• 0: x<-0.64, x>0.84: y'=y
• 1: -0.64<x<0.4: y'=y-d-a*exp(-(x-x0)/τ), with d=0.0986118, a=0.221651,τ=0.11196, and x0=-0.63201.
• 2: 0.4<x<0.476: y'=y-0.3. Very junky area
• 3: 0477<x<0.56: y'=y-0.06-0.54096+.63384x
• 4: 0.56<x<0.84: y'=y-0.54096+.63384x

Additionally, the difference from y' to a model fit using three Fourier frequencies y'-yF is given as:

       yF=Σn=1,3A_n*cos(2π*n*f*x)+B_n*sin(2π*n*f*x)
       

v841CenR

public VectorG v841CenR(Map<String,Double> tdv)

The fit for V841Cen, sIRAIT campaign in July, 2007, Dome-C. We have a varaible t1 which is HJD-2454000.0 and a variable t2 which is the Rmag of V841-V1034, t3 is the error of the measure. We return a 'polished' magnitude and an area indicator. The magnitude is polished in the following way, where x and y are HJD minus average HJD and y is differentail magnitude minus average. The following areas could be distinguished:

• 0: x<-0.65, x>0.808: y'=y
• 1: -0.65<x<0.38: y'=y-d-a*exp(-(x-x0)/τ), with d=0.0968434 , a=0.361659,τ=0.0829157, and x0=-0.63201.
• 2: 0.39<x<0.468: y'=y-0.32. Very junky area
• 3: 0468<x<0.552: y'=y-0.06-0.46515+.58834x
• 4: 0.552<x<0.808: y'=y-0.46515+.58834x

Additionally, the difference from y' to a model fit using three Fourier frequencies y'-yF is given as:

       yF=Σn=1,3A_n*cos(2π*n*f*x)+B_n*sin(2π*n*f*x)
       

main

public static void main(String[] arg)
                 throws ParseException,
                        IOException

Entry point.

Throws:

ParseException

IOException