novaBBS - comp.graphics.apps.gnuplot - Using data from comment lines

Using data from comment lines

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Date: Mon, 27 Dec 2021 05:52:16 -0800 (PST)
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Subject: Using data from comment lines
From: david.pa...@perdrix.co.uk (David Partridge)
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by: David Partridge - Mon, 27 Dec 2021 13:52 UTC

Given a file that starts like this:

# Date/Time 2021/12/22, 10:52:53
# PonE=0,LsKp=200,LsKi=0,LsKd=250,HsKp=40,HsKi=0,HsKd=130,Sp=800,TDEC=1175137
# # Rel. Time, currentPos, PosPID, currentSpeed, speedPID, Lag, ServoPos
0.00000,4693184,0,0,0,0,4693184
0.00000,4693184,2300,0,368,0,4693184

I would like to display the date and time as Centred Text at the top of the plot, and to display the link that starts PonE as a caption (maybe top right). As bonus I've like to take the value following TDEC= and use that to draw a horizontal line marked as "Target".

The following lines contain the data to be plotted.

Some help in achieving that will be most welcome with explanations I can understand ... I'm still struggling with the manual.

Thanks
David

Re: Using data from comment lines

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Subject: Re: Using data from comment lines
From: david.pa...@perdrix.co.uk (David Partridge)
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by: David Partridge - Mon, 27 Dec 2021 13:54 UTC

Re: Using data from comment lines

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Subject: Re: Using data from comment lines
From: david.pa...@perdrix.co.uk (David Partridge)
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by: David Partridge - Wed, 29 Dec 2021 12:05 UTC

On Monday, December 27, 2021 at 1:54:53 PM UTC, David Partridge wrote:
> On Monday, December 27, 2021 at 1:52:17 PM UTC, David Partridge wrote:
> > display the link that starts PonE as a caption (maybe top right).
> Sorry that should have read "the line that starts # PonE"

So if the line with the date/time and test conditions (line starting "# PonE") can't be comments

How would that work?

Many alligators will be slain, but the swamp will remain.

devel / comp.graphics.apps.gnuplot / Using data from comment lines

Subject	Author
Using data from comment lines	David Partridge
Re: Using data from comment lines	David Partridge
Re: Using data from comment lines	David Partridge