---
name: "ctable"
section: "1"
platform: "linux"
package: "ctioga"
version: "1.10-1"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/ctable"
---

# ctable(1)

a small interface to SciYAG's Backend system

## NAME

ctable - a small interface to SciYAG's Backend system

## SYNOPSIS

**ctable** *arguments* ...

## DESCRIPTION

**ctable** is a companion program for ctioga. It takes the same kind of arguments, except that instead of plotting the data acquired from the data sets, it just writes it on standard output, or perform arbitraty operations on it.

*ctable* was written as a toy program to debug the SciYAG Backend system, but it proved much more powerful than it looks. It can be used to do complex data analysis in a scriptable fashion.

## OPTIONS

### Ruby code

By default, ctable executes the code

-

  @block = proc {\|set,data,\*a\| \
           puts "# #{set}"\
           data.each do \|x,y\|\
             puts "#{x} #{y}"\
           end\
         }

The following options can be used to change this behavior.

- **-e, --execute** *BLOCK*

  Executes the given ruby code for each set,  yielding the set name and its data for each. Use  *set* to refer to the set's name,  *data* for it's data and  *args* for the supplementary arguments you're passing to the script.

- **-f, --file** *FILE*

  The same as the  *-e* option except that the code is read from a file rather than on the  command-line.

- **-r, --require** *FILE*

  Has the same effect as Ruby's  *-r* option.

- **-a, --arg** *a*

  Provides additionnal arguments to your code. Each  *-a arg* option pushes the argument on the top of the *args* array provided to your code.

### Backends and filters

See the sections BACKENDS and FILTERS in  *[ctioga(1)](/ctioga/1.md)* for more details.

- **--text**

  - **--text-skip**

  - **--text-baseline**

  - **--multitext**

  - **--multitext-skip**

  - **--math**

  - **--math-samples** *number*

  - **--math-xrange** *range*

  - **--smooth** *number*

  - **--sort**

  - **--filter-pop**

  - **--filter-clear**

  ## AUTHOR

**ctable** was written by Vincent Fourmond with the help of Jean-Julien Fleck.

## BUGS

**ctable** is most certainly not bug-free. You can use the facility at  **rubyforge.org** to report any bug you notice: *http://rubyforge.org/tracker/?func=add&group\_id=1477&atid=5773*. You can also use the same facility for feature requests.

## SEE ALSO

[**ctioga**(1)](/ctioga/1.md), [**ruby**(1)](/ruby/1.md).

Useful documentation, including an illustrated version of the tutorial and instructions on bug reporting, can be found on  *ctioga*'s website, at  *http://sciyag.rubyforge.org/ctioga*.