Syntax:
-ensemblerescalesig sigclip Example 1.$ ./vartools -l EXAMPLES/lc_list -header \ -chi2 -ensemblerescalesig 3. -chi2 #Name Chi2_0 Weighted_Mean_Mag_0 SigmaRescaleFactor_1 Chi2_2 Weighted_Mean_Mag_2 EXAMPLES/1 34711.71793 10.24430 0.32888 3754.43599 10.24786 EXAMPLES/2 1709.50065 10.11178 0.34008 197.71560 10.11842 EXAMPLES/3 27.06322 10.16684 0.36339 3.57371 10.16674 EXAMPLES/4 5.19874 10.35137 0.35266 0.64655 10.35142 EXAMPLES/5 8.26418 10.43932 0.38819 1.24536 10.43964 EXAMPLES/6 3.94650 10.52748 0.40863 0.65899 10.52762 EXAMPLES/7 10.39941 10.56951 0.42085 1.84188 10.56968 EXAMPLES/8 4.19887 10.61132 0.42869 0.77164 10.61154 EXAMPLES/9 2.67020 10.73129 0.44677 0.53297 10.73140 EXAMPLES/10 3.72218 10.87763 0.48353 0.87025 10.87782
Transform the magnitude uncertainties for the light curves in the list EXAMPLES/lc_list. The -chi2 commands before and after -ensemblerescalesig are used to demonstrate that the chi^2 per dof values change, however, for this small set of light curves, which span a limited range of magnitudes and include several artificial variables, the -ensemblerescalesig command is not recommended. This command should only be used in cases where the light curves span a large range of magnitudes, and one can easily see that the "floor" in a magnitude-RMS plot falls well above the expected floor. The example here just illustrates the method of calling this procedure.