Groups > comp.graphics.apps.gnuplot > #1586

Re: Applying arithmetic to a computed column

From	Pete Gregory <pgnewsg@bushlitt.org>
Newsgroups	comp.graphics.apps.gnuplot, mail.kfr@gmx.net
Subject	Re: Applying arithmetic to a computed column
Date	2013-01-24 14:49 -0500
Organization	A noiseless patient Spider
Message-ID	<kds38j$5rr$1@dont-email.me> (permalink)
References	<kdrg03$6ea$1@dont-email.me> <kdrols$74s$1@news.rz.uni-karlsruhe.de>

Cross-posted to 2 groups.

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You understood it correctly and that works perfectly

Many thanks
Pete


On 2013:01:24 11:45 , Karl wrote:
> I´d say you want to use
>
> plot for [i=1:10] "" using(column(i)*1000)
>
> , if i understood you problem correctly.
>
> Regards,
>
>    Karl
>
>
> Am 24.01.2013 15:20, schrieb Pete Gregory:
>> Salutations
>>
>> I have a simple script that plots different columns and blocks using the
>> looping capabilities in gnuplot4.6 (and many thanks to those who coded
>> it up).
>>
>> in the loop I have
>> plot 'myfile' using rfchan index dut with lines {etc etc}
>> where rfchan and dut are for loop variables.
>>
>> This works perfectly other than I realize now it would be better scaled
>> in mA rather than A.   Were I using just column 2 (say), it would be easy
>>
>> plot '' using ($2*1000) {etc etc}
>>
>> but (rfchan*1000) will resolve to looking for column  (rfchan*1000).
>>
>> Is there an easy way to do both the computed column and value multiply ?
>>
>> TIA
>> Pete
>

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Applying arithmetic to a computed column Pete Gregory <pgnewsg@bushlitt.org> - 2013-01-24 09:20 -0500
  Re: Applying arithmetic to a computed column Karl <mail.kfr@gmx.net> - 2013-01-24 17:45 +0100
    Re: Applying arithmetic to a computed column Pete Gregory <pgnewsg@bushlitt.org> - 2013-01-24 14:49 -0500

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