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Task: rmclean Purpose: Run RM-CLEAN on a set of 'dirty' rm-cubes Categories: analysis. RMCLEAN reads in dirty Q and U cubes, generates rmtf based on the frequencies given in an ascii file, and cleans the rm spectra following the algorithm given by Brentjens (2007). The output cubes contain the clean model components, the CLEANed rm spectra and the residuals. The input cubes must be reordered with mode=312, and the output cubes will have the same ordering and thus must be reordered after being written to disk. A script (runrmclean.py) is provided to put everything together into one step. Key: inq Cube containing dirty Q spectra. No default. Key: inu Cube containing dirty U spectra. No default. Key: freq Ascii file containing the observed frequencies. No default. The file should contain one frequency per line, in Hertz. Comment lines aren't allowed. Key: weight Ascii file containing the weights. Default is equal weights. The file should contain one weight per line, in the same order as is given in the frequency file, and the same length. Comment lines aren't allowed. Key: nmax Maximum number of iterations per pixel. Default 1000. Key: gain CLEAN loop gain. Default 0.1. Key: cutoff CLEAN cutoff (in P, without bias correction). Default 0. Key: fwhm FWHM of restoring RM beam, in rad/m^2. Default 0==auto. Key: method Method for determining clean component locations. Choices are: 'peakp': Search P spectrum for largest value 'xcorr': Perform the cross-correlation of the RMTF and the P spectrum at each iteration, and find the location of the largest value in the amplitude of the cross-correlation spectrum. The cross-correlation option is slower, but should be better, especially in low signal-to-noise situations, and is default. Key: outq Output (CLEANed) Q cube. Default 'Qclean'. Key: outu Output (CLEANed) U cube. Default 'Uclean'. Key: modq Model (CLEANed) Q cube. Default 'Qmodel'. Key: modu Model (CLEANed) U cube. Default 'Umodel'. Key: resq Residual Q cube. Default 'Qresid'. Key: resu Residual U cube. Default 'Uresid'. Key: ni Number of CLEAN iterations per pixel. Default 'niters'. Key: derot Derotate the spectrum? 0=no, 1=yes. Default 1. Key: debug Debug mode? 0=no, 1=yes. Default 0. $Id: rmclean.for,v 1.3 2013/05/30 23:07:02 wie017 Exp $