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*iin*- Stokes I spectral cube, with axes in order Channel, X, Y.
*vin*- Stokes V spectral cube, with axes in order Channel, X, Y.
*b*- Output file name for Line-of-sight magnetic field.
*g*- Output file name for amount of residual I found in V (FIT only)
*d*- Output file name for the derivative of I/2 spectrum (DIV only)
*be*- Output file name for the error in B (DIV only)
*blc*- Bottom left corner of box to be fit
*trc*- Top right corner of box to be fit
*freq*- Frequency of line in GHz. This is used to determine amount of splitting per Gauss.
*op*- Operation code. Possible values are ``div'' and ``fit''. For ``div'', the line shift is determined by dividing V by the derivative of I/2. For ``fit'', the line shift is determined by fitting of the derivative of I and I to V.
*cutoff*- For ``div'', the division will not be performed unless the derivative of I/2 is greater than cutoff. For ``fit'', the fit will not be performed unless one or more channels in the I spectrum is larger in absolute value than cutoff.
*vrms*- RMS deviation in V spectrum in a signal free area. This can easily be gotten using histo. Used for calculating error in B for op=div.
*mode*-
This determines the algorithms used, if operation=``fit''. It
can consist of several flags:
l Include leakage term. 2 Use 2 sided derivative approximation. m Use maximum likelihood technique. x Perform extra checks for better solutions, when using the maximum likelihood technique.

Default mode=2m *y corlen*-
Correlation length. Selected window must be divisible by this
number, which is the number of pixels over which you think the
magnetic field might be constant. Default is 1, try maybe 2 or 4.

- NAME
- PERSON RESPONSIBLE
- CATEGORIES
- DESCRIPTION
- PARAMETERS

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Time: 18:35:39 GMT, July 05, 2011