COMMAND NAME:   help

TYPE:           Action

SYNTAX:         "help 'subject'"

DESCRIPTION:

Writes the help file pertaining to "subject" on the 
terminal, under pagination control.  "Subject" is
presently any command name, plus "general".


Action commands:

\begin{verbatim}
        Name    argument(s)     Description
        ----    -----------     -----------
        clear   data            Erase all data from memory
                close		Erase all triangle data from memory
                inputs          Reset input settings to default
                plot            Clear screen or eject page
                all             All three clear functions
        close                   Generate triangle data from type-2 data
        edit    cursor          Zap points on screen with cursor
                inputs          Remove points that don't fit inputs
                duplicates      Remove duplicate points with various priorities
                parents         Remove childless parent records
                children        Remove orphan child records
                close triangles Remove triangle record without baselines
                close baselines Remove baseline record without triangles
                close           Perform both of the above commands
        exit                    End aedit session
        fplot                   Pop up Xwindow fringe plots
        inputs  plot/filter     Print current input settings on screen
        parameter number(s)     Extract parameters from type-2 files on disk
        plist                   List extracted parameters in memory
        plot                    Plot current data according to inputs
        pwrite  file,precision  Write extracted parameters to filename
        read    filename        Read in data from filename
        run     filename        Execute commands in filename
        setyear number          Manually reset year of scan throughout data
        sort    key             Sort data according to various keys
        summary                 Display a summary of all unflagged data
        twrite  filename        Write (edited, sorted) type 3 data to filename
        unflag  string          Removes flags applied for various reasons
        unsort                  Restore original sort order (as read in)
        write   filename        Write (edited, sorted) type 0,1,2 data to filename
        zoom                    Display details of cursor-selected points


Plot control parameters:

        Name    argument(s)     Description
        ----    -----------     -----------
        axis    string          Set variable to plot on Y axis
        grid    a,b             Divide screen/page a times b subplots
        xscale  min,max         Set X-axis scale
        yscale  min,max         Set Y-axis scale
        mode    split/nosplit   Do/don't do 1 plot per source
        reference               Use reference antenna in baseline plots
        remote                  Use remote antenna in baseline plots


Data selection parameters:

        Name            argument(s)     Description
        ----            -----------     -----------
        baselines       AB,BC,AC ....   Use only these type 2 baselines
        triangles       ABC,DEF,ADE ..  Use only these type 3 triangles
        experiment      expt #          Use only data from this experiment
        frequencies     S,X,K, ....     Use only data at these frequencies
        polarizations   RR, LR ....     Use only data with these polarizations
        fraction        nn% ....        Use only scans with >nn% good data
        length          number          Use only scans > number secs or blocks
        nfreq           <>= nn          Use only scans with <>= nn frequencies
        qcodes          5-9,D ...       Use only data with these quality codes
        snrmax          number          Use only type 2 data with snr < number
        snrmin          number          Use only type 2 data with snr > number
        bsnrmax         number          Use only type 3 data with bsnr < number
        bsnrmin         number          Use only type 3 data with bsnr > number
        sources         name1,name2...  Use only data on these sources
        stations        A,B,C,D ....    Use only data from these stations
        timerange       yyddd-hhmmss, yyddd-hhmmss      
                                        Use only data in time range
        prange          n, min, max     Use only data with parameter n in range
        procrange       yyddd-hhmm, yyddd-hhmm  
                                        Use only data in procdate range
        type            0 1 2 3         Use only data of these types


Experiment overview commands/parameters:

        Name            argument(s)     Description
        ----            -----------     -----------
        ccread          filename        Read specified CC file into memory
        psplot                          Display active plot of experiment
        psfile          filename        Write experiment summary to filename
        reproc          filename        Write skeleton reproc afile to filename

I/O control parameters:

        Name            argument(s)     Description
        ----            -----------     -----------
        device          string          Plotting device for PGPLOT
        outversion      number          Determines output A-file format version


Miscellaneous:

        Name    argument(s)     Description
        ----    -----------     -----------
        batch   none            Disables interactive confirmation querys
        nobatch none            Enables interactive confirmation querys
\end{verbatim}
