1. Forum
  2. Usenet
  3. COMP.GRAPHICS.APPS.GNUPLO

  • Newb question

    From David Partridge@21:1/5 to All on Tue Sep 7 04:04:44 2021
    I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.

    I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).

    Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.

    Thanks
    David

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Olaf Schultz@21:1/5 to David Partridge on Tue Sep 7 13:51:36 2021
    On 9/7/21 13:04, David Partridge wrote:
    I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.

    I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).

    Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.

    Thanks
    David


    Moin, perhaps

    try it with "with labels"

    http://gnuplot.sourceforge.net/demo/

    espacially

    http://gnuplot.sourceforge.net/demo/datastrings.html

    is a good hint for you.

    Greetings,

    Olaf

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From David Partridge@21:1/5 to Olaf Schultz on Wed Sep 8 01:11:58 2021
    On Tuesday, September 7, 2021 at 12:51:40 PM UTC+1, Olaf Schultz wrote:
    On 9/7/21 13:04, David Partridge wrote:
    I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.

    I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).

    Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.

    Thanks
    David

    Moin, perhaps

    try it with "with labels"

    http://gnuplot.sourceforge.net/demo/

    espacially

    http://gnuplot.sourceforge.net/demo/datastrings.html

    is a good hint for you.

    Greetings,

    Olaf
    Not really as there wasn't any explanation of what was happening. Lets try this with a different approach. What if the first record is a comment line and therefore csv metadata.

    Is there a way to get GNUPlot to display that comment line as a caption?

    D.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From =?UTF-8?Q?J=c3=b6rg_Buchholz?=@21:1/5 to David Partridge on Thu Sep 9 09:51:37 2021
    On 08.09.2021 10:11, David Partridge wrote:
    On Tuesday, September 7, 2021 at 12:51:40 PM UTC+1, Olaf Schultz wrote:
    On 9/7/21 13:04, David Partridge wrote:
    I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.

    I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).

    Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.

    Thanks
    David

    Moin, perhaps

    try it with "with labels"

    http://gnuplot.sourceforge.net/demo/

    espacially

    http://gnuplot.sourceforge.net/demo/datastrings.html

    is a good hint for you.

    Greetings,

    Olaf
    Not really as there wasn't any explanation of what was happening. Lets try this with a different approach. What if the first record is a comment line and therefore csv metadata.

    Is there a way to get GNUPlot to display that comment line as a caption?

    D.

    Hi David

    as a example, if your datafile is something like this and named "data.dat":

    This is the title
    1 2
    1 3
    1 4
    1 5
    2 1


    Than you can do the following and you have a plot with "This is the
    title" as the title.

    set datafile separator ";"
    set term unknow
    plot 'data.dat' every ::0::0 using (textVar=stringcolumn(1),0)
    set title textVar
    set datafile separator whitespace
    set term qt
    plot 'data.dat' skip 1 u 1:2

    Jörg

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)