@@ MCC:prepare_MC_COMBO

Purpose:

Preparation of a mock catalogue for Monte-carlo simulations of the classification. Here, a colour library of one object class is used to simulate the photometry of test objects with a desired magnitude. Such simulations allow to spot inherent weaknesses in the classification.


Syntax:		@@ MCC:prepare_MC_COMBO  [color-lib]  [R-mag]  [out-file]

	   	   color-lib  = Name of input table, i.e. colour library
				(default: test_lib)
		   R-mag      = R magnitude for test objects
				(default: 21)
		   out-file   = Name of output table with test objects
				(default: test_out)


Examples:	@@ MCC:prepare_MC_COMBO  fMC_UK96 
		@@ MCC:prepare_MC_COMBO  fMC_QSO  22.5 testqso_225
		@@ MCC:prepare_MC_COMBO  fMC_KICA    ? test1
Remarks:

This command creates a table of test objects, which is the same set of objects as in the colour library from which it is made. The objects have the same colour indices plus added noise which is determined from the object brightness and the typical COMBO magnitude limits.
All columns required by the classification program are created. Hence, the mock table created here can be processed with MCCLASS/CLASSIFY like any observed flux table. The parameter file can be used to select which colour indices should be actively used and which should be ignored to test the dependence of the classification performance on the availability of certain data.



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Last update July 19, 2005, CW