gnuplot-info

[Gnuplot-info] How do I pass values into a script?

[Grant E. <gr...@vi...>]

How does one pass values (e.g. a filename to plot) into a
gnuplot script?

Is there some way to refer to command-line arguments a-la
bash's $1 $2 notation?

-- 
Grant Edwards                   grante             Yow! Where does it go when
                                  at               you flush?
                               visi.com            

Re: [Gnuplot-info] How do I pass values into a script?

[Thomas S. <t.s...@fz...>]

> How does one pass values (e.g. a filename to plot) into a
> gnuplot script?
>
> Is there some way to refer to command-line arguments a-la
> bash's $1 $2 notation?

see 'help call'

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Re: [Gnuplot-info] How do I pass values into a script?

[Grant E. <gr...@vi...>]

On 2008-04-09, Thomas Sefzick <t.s...@fz...> wrote:
>
>> How does one pass values (e.g. a filename to plot) into a
>> gnuplot script?
>>
>> Is there some way to refer to command-line arguments a-la
>> bash's $1 $2 notation?
>
> see 'help call'

I saw that, and it didn't seem to be relevent since I'm not
using the 'call' command.  Tests using that mechanism also
failed to illuminate:

$ cat testit.gp
#!/usr/bin/gnuplot
print "$1", "$2"
print $1, $2

$ ./testit.gp one two
$1$2

print $1, $2
      ^
"./testit.gp", line 3: undefined value


-- 
Grant Edwards                   grante             Yow! UH-OH!!  We're out
                                  at               of AUTOMOBILE PARTS and
                               visi.com            RUBBER GOODS!

Re: [Gnuplot-info] How do I pass values into a script?

[Thomas S. <t.s...@fz...>]

> $ cat testit.gp
> #!/usr/bin/gnuplot
> print "$1", "$2"
> print $1, $2

you need a wrapper-script, e.g.
gnuplot_wrapper.sh:

#!/bin/sh
gnuplot - << END
call "$1" $2 $3 $4 $5 $6 $7 $8 $9
END

and you start a gnuplot script, e.g.
test.gnu:

print "argc=$# p0=$0 p1=$1 p2=$2 p3=$3 p4=$4 p5=$5 p6=$6 p7=x$7x"

like this:

gnuplot_wrapper.sh test.gnu a b c d e f g h i j k

and get:

gnuplot> call "ts.gpl" a b c d e f g h
argc=8 p0=a p1=b p2=c p3=d p4=e p5=f p6=g p7=xhx
gnuplot> 

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