PDL::Dbg - functions to support debugging of PDL scripts |
PDL::Dbg - functions to support debugging of PDL scripts
use PDL; use PDL::Dbg;
$c = $a->slice("5:10,2:30")->px->diagonal(3,4); PDL->px;
This packages implements a couple of functions that should come in handy when debugging your PDL scripts. They make a lot of sense while you're doing rapid prototyping of new PDL code, let's say inside the perldl shell.
Print info about a piddle (or all known piddles)
perldl> PDL->px perldl> $b += $a->clump(2)->px('clumptest')->sumover perldl> $a->px('%C (%A) Type: %T')
This function prints some information about piddles. It can be invoked
as a class method (e.g. PDL->px
) or as an instance method (e.g.
$pdl->px($arg)
). If
my
variables). This comes in quite handy when you are
not quite sure which pdls you have already defined, what data they
hold , etc. px
is supposed to support inheritance and prints info
about all symbols for which an isa($class)
is true. An optional
string argument is interpreted as the package name for which to print
symbols:
perldl> PDL->px('PDL::Mypack')
The default package is that of the caller.
$PDL::debug
is
true and returns the pdl object upon completion. It accepts an
optional string argument that is simply prepended to the default info
if it doesn't contain a %
character. If, however, the argument
contains a %
then the string is passed to the info
method to
control the format of the printed information. This can be used to
achieve customized output from px
. See the documentation of
PDL::info
for further details.
The output of px will be determined by the default formatting string
that is passed to the info
method (unless you pass a string
containing %
to px when invoking as an instance method, see
above). This default string is stored in $PDL::Dbg::Infostr
and the
default output format can be accordingly changed by setting this
variable. If you do this you should also change the default title
string that the class method branch prints at the top of the listing
to match your new format string. The default title is stored in the
variable $PDL::Dbg::Title
.
For historical reasons vars
is an alias for px
.
Alias for px
There are probably some. Please report if you find any. Bug reports should be sent to the PDL mailing list perldl@jachw.hawaii.edu.
Copyright(C)
1997 Christian Soeller (c.soeller@auckland.ac.nz)
All rights reserved. There is no warranty. You are allowed
to redistribute this software / documentation under certain
conditions. For details, see the file COPYING in the PDL
distribution. If this file is separated from the PDL distribution,
the copyright notice should be included in the file.
PDL::Dbg - functions to support debugging of PDL scripts |