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+	Gallist Keystroke Commands
+
+?	Print options
+f	Fit one or more of following 
+	    Spatial density function (SDF)
+            Luminosity  function (LF)
+	    Distribution of morphological type
+	    Diameter distribution
+	    Roundness distribution
+	    Position angle distribution 
+x	Plot the x-y spatial density function
+r	Plot the histogram of the radial density function
+m	Plot the histogram of the luminosity function
+d	Plot the histogram of the diameter values
+e	Plot the histogram of the roundness values 
+p	Plot the histogram of the position angle values
+:	Colon escape commands (see below)
+q	Exit program
+
+
+	Gallist Colon Commands
+
+:show			Show gallist parameters
+:ngal       [value]	Number of galaxies
+
+:spatial    [string]	Spatial density function (SDF) (uniform|hubble|file) 
+:xmin       [value]	Minimum X value
+:xmax       [value]	Maximum X value
+:ymin       [value]	Minimum Y value
+:ymax       [value]	Maximum Y value
+:xcenter    [value]	X center for radial density function
+:ycenter    [value]	Y center for radial density function
+:core       [value]	Core radius for Hubble density function
+:base       [value]	Background density for Hubble density function
+
+:luminosity [string]	Luminosity function (LF)
+			(uniform|powlaw|shcecter|file)
+:minmag     [value]	Minimum magnitude
+:maxmag     [value]	Maximum magnitude
+:power      [value]     Power law coefficient
+:mzero	    [value]     Zero point for Schecter luminosity function
+:alpha      [value]	Schecter parameter
+:mstar      [value]	Characteristic mag for Schecter function
+
+:egalmix    [value]	Elliptical/Spiral galaxy ratio
+:ar         [value]     Minimum elliptical galaxy axial ratio
+:eradius    [value]     Maximum elliptical half flux radius
+:sradius    [value]     Spiral/elliptical radius at same magnitude
+:absorption [value]	Absorption correction for edge-on spirals
+:z          [value]     Minimum redshift
+
+:lfile      [string]    Name of the luminosity function file
+:sfile	    [string]    Name of the spatial density function file
+:nlsample   [value]	Number of LF sample points 
+:lorder	    [value]	Order of spline approximation to the integrated LF
+:nssample   [value]	Number of SDF sample points
+:sorder	    [value]	Order of spline approximation to the integrated SDF
+
+:rbinsize   [value]	Resolution of radial SDF histogram in pixels
+:mbinsize   [value]	Resolution of magnitude histogram in magnitudes
+:dbinsize   [value]	Resolution of diameter histogram in pixels
+:ebinsize   [value]	Resolution of roundness histogram in pixels
+:pbinsize   [value]     Resolution of position angle histogram in degrees