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Groups > comp.graphics.apps.gnuplot > #1943 > unrolled thread
| Started by | Serge Terekhov <serge.terekhov@gmail.com> |
|---|---|
| First post | 2013-07-30 14:31 -0700 |
| Last post | 2013-07-31 19:40 +0200 |
| Articles | 4 — 3 participants |
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Can't use columnhead() more than once Serge Terekhov <serge.terekhov@gmail.com> - 2013-07-30 14:31 -0700
Re: Can't use columnhead() more than once Karl <ratzsch@polymer.uka.de> - 2013-07-31 16:08 +0200
Re: Can't use columnhead() more than once Serge Terekhov <serge.terekhov@gmail.com> - 2013-07-31 09:58 -0700
Re: Can't use columnhead() more than once Karl <mail.kfr@gmx.net> - 2013-07-31 19:40 +0200
| From | Serge Terekhov <serge.terekhov@gmail.com> |
|---|---|
| Date | 2013-07-30 14:31 -0700 |
| Subject | Can't use columnhead() more than once |
| Message-ID | <f518617c-9ba3-4396-86e4-89f9ac5aca3f@googlegroups.com> |
Simple plot (data file is ok) plot "data30Jun.txt" using 1:2 title "Results for ".columnhead(1)." vs ". columnhead(2) doesn't work (second column name is shown instead of first, but second itself is replaced with @COLUMNHEAD@ string) Any idea? Thanks.
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| From | Karl <ratzsch@polymer.uka.de> |
|---|---|
| Date | 2013-07-31 16:08 +0200 |
| Message-ID | <ktbcpu$ic4$1@news.rz.uni-karlsruhe.de> |
| In reply to | #1943 |
On 30.07.2013 23:31, Serge Terekhov wrote: > Simple plot (data file is ok) > > plot "data30Jun.txt" using 1:2 title "Results for ".columnhead(1)." vs ". columnhead(2) > > doesn't work (second column name is shown instead of first, but second itself is replaced with @COLUMNHEAD@ string) > The help on "columnhead" says "columnhead(x) may _only_ be used in expressions as part of _using_ manipulations to fits or datafile plots." , so this is not strictly supposed to work. On the other hand, the help "Datastrings" gives examples for using it in the "title" statement. So the documentation needs an update here. That a second instance of columnhead gives nothing, and the first one a wrong header then, looks like a bug. Nobody thought about the possibility of wanting two headers for one plot. But why do you want the abscissa title in the legend anyway? just put it in the xlabel. The x-axis is the independant variable, so everything is plotted vs. the x-axis. Karl
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| From | Serge Terekhov <serge.terekhov@gmail.com> |
|---|---|
| Date | 2013-07-31 09:58 -0700 |
| Message-ID | <9efa99ca-56d9-4e83-9104-6d3471903f39@googlegroups.com> |
| In reply to | #1944 |
> > The help on "columnhead" says > > > > "columnhead(x) may _only_ be used in expressions as part of _using_ > > manipulations to fits or datafile plots." > > > > > > , so this is not strictly supposed to work. On the other hand, the > > help "Datastrings" gives examples for using it in the "title" statement. > > > > So the documentation needs an update here. > > > > That a second instance of columnhead gives nothing, and the first > > one a wrong header then, looks like a bug. Nobody thought about the > > possibility of wanting two headers for one plot. > > > > > > But why do you want the abscissa title in the legend anyway? just > > put it in the xlabel. The x-axis is the independant variable, so > > everything is plotted vs. the x-axis. > > > > > > Karl Dear Karl, thanks a lot! Surely, I can display all titles and captions elsewhere. This example was my very first trial with gnuplot - such a novice trials may sometimes lead to behaviors like this :) Thanks again for the explanation. Serge
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| From | Karl <mail.kfr@gmx.net> |
|---|---|
| Date | 2013-07-31 19:40 +0200 |
| Message-ID | <ktbp7o$s4n$1@news.rz.uni-karlsruhe.de> |
| In reply to | #1945 |
Am 31.07.2013 18:58, schrieb Serge Terekhov: >> >> The help on "columnhead" says >> >> >> >> "columnhead(x) may _only_ be used in expressions as part of _using_ >> >> manipulations to fits or datafile plots." >> >> >> >> >> >> , so this is not strictly supposed to work. On the other hand, the >> >> help "Datastrings" gives examples for using it in the "title" statement. >> >> >> >> So the documentation needs an update here. >> >> >> >> That a second instance of columnhead gives nothing, and the first >> >> one a wrong header then, looks like a bug. Nobody thought about the >> >> possibility of wanting two headers for one plot. >> >> >> >> >> >> But why do you want the abscissa title in the legend anyway? just >> >> put it in the xlabel. The x-axis is the independant variable, so >> >> everything is plotted vs. the x-axis. >> >> >> >> >> >> Karl > > Dear Karl, thanks a lot! Surely, I can display all titles and captions elsewhere. This example was my very first trial with gnuplot - such a novice trials may sometimes lead to behaviors like this :) Thanks again for the explanation. > > Serge > I just filed a bug ticket on this https://sourceforge.net/p/gnuplot/bugs/1271/ Karl
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