NAME

       stilts-tloop - Generates a single-column table from a loop variable

SYNOPSIS

       stilts tloop [ocmd=<cmds>]
                    [omode=out|meta|stats|count|checksum|cgi|discard|topcat|samp|tosql|gui]
                    [out=<out-table>] [ofmt=<out-format>] [colname=<value>] [start=<float-value>]
                    [end=<float-value>] [step=<float-value>] [forcefloat=true|false]

DESCRIPTION

       tloop generates a one-column  table  where  the  values  in  the  column  are  effectively
       populated  from  a  for loop (start, end, step). This may be useful as it is, or it can be
       postprocessed with ocmd parameters to add more columns etc.

OPTIONS

       ocmd=<cmds>
              Specifies processing  to  be  performed  on  the  output  table,  after  all  other
              processing  has  taken  place.  The  value  of this parameter is one or more of the
              filter commands described in SUN/256. If more than  one  is  given,  they  must  be
              separated  by  semicolon  characters (";"). This parameter can be repeated multiple
              times on the same command line to build up a list of processing steps. The sequence
              of commands given in this way defines the processing pipeline which is performed on
              the table.

              Commands may alteratively be supplied in an external file, by using the indirection
              character  '@'. Thus a value of "@filename" causes the file filename to be read for
              a list of filter commands to execute. The commands in the file may be separated  by
              newline characters and/or semicolons, and lines which are blank or which start with
              a '#' character are ignored.

       omode=out|meta|stats|count|checksum|cgi|discard|topcat|samp|tosql|gui
              The mode in which the result table will be output. The default mode is  out,  which
              means  that  the  result  will  be  written as a new table to disk or elsewhere, as
              determined by the out and ofmt parameters. However, there are other  possibilities,
              which correspond to uses to which a table can be put other than outputting it, such
              as displaying metadata, calculating statistics, or populating a  table  in  an  SQL
              database.  For  some  values of this parameter, additional parameters (<mode-args>)
              are required to determine the exact behaviour.

              Possible values are

                * out

                * meta

                * stats

                * count

                * checksum

                * cgi

                * discard

                * topcat

                * samp

                * tosql

                * gui
               Use the help=omode flag or see SUN/256 for more information.

       out=<out-table>
              The location of the output table. This is usually a filename to write to. If it  is
              equal  to  the  special value "-" (the default) the output table will be written to
              standard output.

              This parameter must only be given if omode has its default value of "out".

       ofmt=<out-format>
              Specifies the format in which the output table will be written (one of the ones  in
              SUN/256 - matching is case-insensitive and you can use just the first few letters).
              If it has the special value "(auto)" (the default), then the output  filename  will
              be examined to try to guess what sort of file is required usually by looking at the
              extension. If it's not obvious from the filename what output format is intended, an
              error will result.

              This parameter must only be given if omode has its default value of "out".

       colname=<value>
              Gives the name of the single column produced by this command.

       start=<float-value>
              Gives the starting value of the loop variable. This will the the value in the first
              row of the table.

       end=<float-value>
              Gives the value which the loop variable  will  not  exceed.  Exceeding  is  in  the
              positive  or  negative sense according to the sense of the step parameter, as usual
              for a for-type loop.

       step=<float-value>
              Amount by which the loop variable will be incremented at each iteration, i.e.  each
              table row.

       forcefloat=true|false
              Affects  the  data  type of the loop variable column. If true, the column is always
              floating point. If false, and if the other parameters are all of integer type,  the
              column will be an integer column.

SEE ALSO

       stilts(1)

       If  the  package  stilts-doc  is installed, the full documentation SUN/256 is available in
       HTML format:
       file:///usr/share/doc/stilts/sun256/index.html

VERSION

       STILTS version 3.4.6-debian

       This is the Debian version of Stilts, which lack the support  of  some  file  formats  and
       network protocols. For differences see
       file:///usr/share/doc/stilts/README.Debian

AUTHOR

       Mark Taylor (Bristol University)

                                             Mar 2017                             STILTS-TLOOP(1)