• NAME
• DESCRIPTION
• SYNOPSIS
• FUNCTIONS
• apropos
• usage
• sig
• help
• badinfo

NAME

PDL::Doc::Perldl - commands for accessing PDL doc database from 'perldl' shell

DESCRIPTION

This module provides a simple set of functions to access the PDL documentation of database, for use from the perldl shell and the pdldoc command-line program.

Currently, multiple matches are not handled very well.

SYNOPSIS

 use PDL::Doc::Perldl; # Load all documenation functions

FUNCTIONS

apropos

Regex search PDL documentation database

 apropos 'text'

 perldl> apropos 'pic'
 rpic            Read images in many formats with automatic format detection.
 rpiccan         Test which image formats can be read/written
 wmpeg           Write an image sequence ((x,y,n) piddle) as an MPEG animation.
 wpic            Write images in many formats with automatic format selection.
 wpiccan         Test which image formats can be read/written

To find all the manuals that come with PDL, try

  apropos 'manual:'

and to get quick info about PDL modules say

  apropos 'module:'

You get more detailed info about a PDL function/module/manual with the help function

usage

Prints usage information for a PDL function

 Usage: usage 'func'

   perldl> usage 'inner'

   inner           inner prodcuct over one dimension
                   (Module PDL::Primitive)

   Signature: inner(a(n); b(n); [o]c(); )

sig

prints signature of PDL function

 sig 'func'

The signature is the normal dimensionality of the functions arguments. Calling with different dimensions causes 'threading' - see PDL::PP for more details.

  perldl> sig 'outer'
    Signature: outer(a(n); b(m); [o]c(n,m); )

help

print documentation about a PDL function or module or show a PDL manual

In the case of multiple matches, the first command found is printed out, and the remaining commands listed, along with the names of their modules.

 Usage: help 'func'

 perldl> help 'PDL::Slices'   # show the docs in the PDL::Slices module
 perldl> help 'PDL::Intro'    # show the PDL::Intro manual
 perldl> help 'slice'         # show docs on the 'slice' function

badinfo

provides information on the bad-value support of a function

And has a horrible name.

 badinfo 'func'