08-25-2006
gnuplotting in a shell
Hi,
I am trying to automate the gnuplotting of more than 500 data files. For this, I have written a script which is working fine but for one issue...
The problem is that I have to plot the whole data and then plot the row starting with 60001 because I use a different symbol for it. Therefore I look in my data files for a particular row starting with 60001. As you can see below in my script, I do this with gawk. My data files look like
-----------------------------------------
##comment
##comment
45601 value1 value2 etc ...
34210 value1 value2 etc ...
21345 value1 value2 etc ...
.
.
60001 value1 value2 etc ...
34213 value1 value2 etc ...
--------------------------------------------
The row starting with 60001 changes its position in the different data files, so that I have to gawk it out.
The script is:
-----------------------------------------------------
#!/usr/bin/env zsh
for f in *.asc.gz ; do
eps_file=`basename $f .asc.gz`.eps
gnuplot <<EOF
unset key
set xrange [-15:15]
set yrange [-15:15]
set xlabel "X (pc)" font "Helvetica,12"
set ylabel "Y (pc)" font "Helvetica,12"
set terminal postscript eps enhanced ; set output "$eps_file"
set pointsize 1
plot "< zcat $f" using 3:4 with dots lt 8;
set pointsize 2;
replot "< zcat $f | gawk -v NAME=60001 '/AS/ {TIME=$4} $1==NAME {print TIME,$2,$3,$4,$5,$6,$7,$8,$11; exit}'" using 3:4 with points pt 6 lt -1 ;
unset output
EOF
done
---------------------------------------------------
(I print more columns that I need but this is not the problem)
When I give gnuplot the commands for a single data file I get what I want; when I execute the script in the directory with 500 files, I get
--------------------------------------
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
gawk: /AS/ {TIME=} ==NAME {print TIME,,,,; exit}
gawk: ^ syntax error
zcat: stdout: Broken pipe
gnuplot> plot "< zcat Splotch4_0010_part.asc.gz" using 3:4 with dots lt 8, "< zcat Splotch4_0010_part.asc.gz | gawk -v NAME=60001 '/AS/ {TIME=} ==NAME {print TIME,,,,; exit}'" using 3:4 with points pt 6 lt -1 ;
^
line 0: no data point found in specified file
------------------------------------------
and so on and so forth...
Can anybody help me?
Thanks in any case
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LEARN ABOUT SUSE
html::formatter
HTML::Formatter(3) User Contributed Perl Documentation HTML::Formatter(3)
NAME
HTML::Formatter - Base class for HTML formatters
SYNOPSIS
use HTML::FormatSomething;
my $infile = "whatever.html";
my $outfile = "whatever.file";
open OUT, ">$outfile"
or die "Can't write-open $outfile: $!
Aborting";
binmode(OUT);
print OUT HTML::FormatSomething->format_file(
$infile,
'option1' => 'value1',
'option2' => 'value2',
...
);
close(OUT);
DESCRIPTION
HTML::Formatter is a base class for classes that take HTML and format it to some output format. When you take an object of such a base
class and call "$formatter->format( $tree )" with an HTML::TreeBuilder (or HTML::Element) object, they return the
HTML formatters are able to format a HTML syntax tree into various printable formats. Different formatters produce output for different
output media. Common for all formatters are that they will return the formatted output when the format() method is called. The format()
method takes a HTML::Element object (usually the HTML::TreeBuilder root object) as parameter.
Here are the four main methods that this class provides:
SomeClass->format_file( $filename, option1 => value1, option2 => value2, ... )
This returns a string consisting of the result of using the given class to format the given HTML file according to the given (optional)
options. Internally it calls "SomeClass->new( ... )->format( ... )" on a new HTML::TreeBuilder object based on the given HTML file.
SomeClass->format_string( $html_source, option1 => value1, option2 => value2, ... )
This returns a string consisting of the result of using the given class to format the given HTML source according to the given
(optional) options. Internally it calls "SomeClass->new( ... )->format( ... )" on a new HTML::TreeBuilder object based on the given
source.
$formatter = SomeClass->new( option1 => value1, option2 => value2, ... )
This creates a new formatter object with the given options.
$render_string = $formatter->format( $html_tree_object )
This renders the given HTML object accerting to the options set for $formatter.
After you've used a particular formatter object to format a particular HTML tree object, you probably should not use either again.
SEE ALSO
HTML::FormatText, HTML::FormatPS, HTML::FormatRTF
HTML::TreeBuilder, HTML::Element, HTML::Tree
COPYRIGHT
Copyright (c) 1995-2002 Gisle Aas, and 2002- Sean M. Burke. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
AUTHOR
Current maintainer: Sean M. Burke <sburke@cpan.org>
Original author: Gisle Aas <gisle@aas.no>
perl v5.12.1 2004-06-02 HTML::Formatter(3)