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From: Patrick D. <pd...@gm...> - 2018-08-21 22:33:47
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Hello, Something is escaping to me. I tried: set table "out.asc" plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) with table unset table But the number of samples is ignored while plot $DATA u 1:2 replot ampl*d_Lor_D (x-x0, W)+offset has the right number of sample How can I fix the issue ? Thank =========================================================================== Patrick DUPRÉ | | email: pd...@gm... Laboratoire de Physico-Chimie de l'Atmosphère | | Université du Littoral-Côte d'Opale | | Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 189A, avenue Maurice Schumann | | 59140 Dunkerque, France =========================================================================== |
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From: Ethan M. <eam...@gm...> - 2018-08-21 22:46:55
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On Tue, Aug 21, 2018 at 3:33 PM, Patrick Dupre <pd...@gm...> wrote:
> Hello,
>
> Something is escaping to me.
> I tried:
>
> set table "out.asc"
> plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) with table
> unset table
>
>
> But the number of samples is ignored
That is because there is no sampling. You have asked it to print
one line of output for each line in $DATA. The first value on that line is
echoed from $DATA, the second value is a function of the first.
while
> plot $DATA u 1:2
> replot ampl*d_Lor_D (x-x0, W)+offset
> has the right number of sample
>
Here you generate two plots.
The first one has one line for each line in $DATA.
The second one samples a function, where the number of samples
is controlled by "set sample".
There is no intrinsic relationship between the x values in the first plot
and those in the second.
How can I fix the issue
>
It is not clear what you are aiming for.
Are you trying to fit and re-sample the values held in $DATA?
That would require a rather different set of commands, either
based on "fit" or "smooth".
Ethan
> Thank
>
> ============================================================
> ===============
> Patrick DUPRÉ | | email: pd...@gm...
> Laboratoire de Physico-Chimie de l'Atmosphère | |
> Université du Littoral-Côte d'Opale | |
> Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
> 189A, avenue Maurice Schumann | | 59140 Dunkerque, France
> ============================================================
> ===============
>
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From: Ethan A M. <EAM...@gm...> - 2018-08-22 04:13:50
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On Wednesday, 22 August 2018 00:56:20 Patrick Dupre wrote: > > =========================================================================== > Patrick DUPRÉ | | email: pd...@gm... > Laboratoire de Physico-Chimie de l'Atmosphère | | > Université du Littoral-Côte d'Opale | | > Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 > 189A, avenue Maurice Schumann | | 59140 Dunkerque, France > =========================================================================== > > > Sent: Wednesday, August 22, 2018 at 12:46 AM > From: "Ethan Merritt" <eam...@gm...> > To: "Patrick Dupre" <pd...@gm...> > Cc: gnuplot <gnu...@li...> > Subject: Re: [Gnuplot-info] plot with table > On Tue, Aug 21, 2018 at 3:33 PM, Patrick Dupre <pd...@gm...> wrote: > Hello, > > Something is escaping to me. > I tried: > > set table "out.asc" > plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) with table > unset table > > > But the number of samples is ignored > > That is because there is no sampling. You have asked it to print > one line of output for each line in $DATA. The first value on that line is > echoed from $DATA, the second value is a function of the first. > > while > plot $DATA u 1:2 > replot ampl*d_Lor_D (x-x0, W)+offset > has the right number of sample > > Here you generate two plots. > The first one has one line for each line in $DATA. > The second one samples a function, where the number of samples > is controlled by "set sample". > There is no intrinsic relationship between the x values in the first plot > and those in the second. > > How can I fix the issue > > > It is not clear what you are aiming for. > Are you trying to fit and re-sample the values held in $DATA? > That would require a rather different set of commands, either > based on "fit" or "smooth". > > Ethan > > > Actually, I fit $DATA, and I plot the fit with replot ampl*d_Lor_D (x-x0, W)+offset > while I would like also to get the same data in a file Sorry, I still do not understand what you are trying to do. Why are you using "replot" rather than "plot"? What content, exactly, do you want to have in the output file? Ethan |
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From: Patrick D. <pd...@gm...> - 2018-08-22 07:49:11
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Sorry, for the replot, I do not need the replot. I want to do for example: set table "out.asc" plot [44500:45600] (ampl*d_Lor_D (x-x0, W)+offset) without getting the third column with "i" or plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) for x taken from x_min to x_max with "samples" values in other words. I want in a file what I can plot with replot ampl*d_Lor_D (x-x0, W)+offset after a fit. Thank. =========================================================================== Patrick DUPRÉ | | email: pd...@gm... Laboratoire de Physico-Chimie de l'Atmosphère | | Université du Littoral-Côte d'Opale | | Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 189A, avenue Maurice Schumann | | 59140 Dunkerque, France =========================================================================== > Sent: Wednesday, August 22, 2018 at 5:56 AM > From: "Ethan A Merritt" <EAM...@gm...> > To: "Patrick Dupre" <pd...@gm...> > Cc: gnuplot <gnu...@li...> > Subject: Re: [Gnuplot-info] plot with table > > On Wednesday, 22 August 2018 00:56:20 Patrick Dupre wrote: > > > > =========================================================================== > > Patrick DUPRÉ | | email: pd...@gm... > > Laboratoire de Physico-Chimie de l'Atmosphère | | > > Université du Littoral-Côte d'Opale | | > > Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 > > 189A, avenue Maurice Schumann | | 59140 Dunkerque, France > > =========================================================================== > > > > > > Sent: Wednesday, August 22, 2018 at 12:46 AM > > From: "Ethan Merritt" <eam...@gm...> > > To: "Patrick Dupre" <pd...@gm...> > > Cc: gnuplot <gnu...@li...> > > Subject: Re: [Gnuplot-info] plot with table > > On Tue, Aug 21, 2018 at 3:33 PM, Patrick Dupre <pd...@gm...> wrote: > > Hello, > > > > Something is escaping to me. > > I tried: > > > > set table "out.asc" > > plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) with table > > unset table > > > > > > But the number of samples is ignored > > > > That is because there is no sampling. You have asked it to print > > one line of output for each line in $DATA. The first value on that line is > > echoed from $DATA, the second value is a function of the first. > > > > while > > plot $DATA u 1:2 > > replot ampl*d_Lor_D (x-x0, W)+offset > > has the right number of sample > > > > Here you generate two plots. > > The first one has one line for each line in $DATA. > > The second one samples a function, where the number of samples > > is controlled by "set sample". > > There is no intrinsic relationship between the x values in the first plot > > and those in the second. > > > > How can I fix the issue > > > > > > It is not clear what you are aiming for. > > Are you trying to fit and re-sample the values held in $DATA? > > That would require a rather different set of commands, either > > based on "fit" or "smooth". > > > > Ethan > > > > > > Actually, I fit $DATA, and I plot the fit with replot ampl*d_Lor_D (x-x0, W)+offset > > while I would like also to get the same data in a file > > Sorry, I still do not understand what you are trying to do. > Why are you using "replot" rather than "plot"? > What content, exactly, do you want to have in the output file? > > Ethan > > > > > |
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From: Ethan A M. <EAM...@gm...> - 2018-08-22 16:37:31
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On Wednesday, 22 August 2018 09:49:01 Patrick Dupre wrote: > Sorry, for the replot, I do not need the replot. > > I want to do for example: > > set table "out.asc" > plot [44500:45600] (ampl*d_Lor_D (x-x0, W)+offset) > without getting the third column with "i" plot '+' using 1:(ampl*d_Lor_D (x-x0, W)+offset) with table > > or > plot $DATA u (x=$1):(ampl*d_Lor_D (x-x0, W)+offset) > for x taken from x_min to x_max with "samples" values > > in other words. > I want in a file what I can plot with > replot ampl*d_Lor_D (x-x0, W)+offset ^^^^^^^ I still do not understand why you are using replot. Ethan > after a fit. > > Thank. > > =========================================================================== > Patrick DUPRÉ | | email: pd...@gm... > Laboratoire de Physico-Chimie de l'Atmosphère | | > Université du Littoral-Côte d'Opale | | > Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 > 189A, avenue Maurice Schumann | | 59140 Dunkerque, France > =========================================================================== |
