Library: customisation of the generated Gnuplot diagram

src/lib/gnuplot-gen.cpp

@@ -30,7 +30,42 @@
  ** without much structure or preconceptions and written in a way to encourage adding
  ** more use-cases by copy-and-paste. Following this pragmatic approach, generalisations
  ** and common schemes will emerge eventually.
- ** @todo WIP-WIP 4/2024 first usage as part of Scheduler stress testing.
+ ** 
+ ** # Script generation
+ ** The resulting Gnuplot script is combined from several building blocks, and
+ ** passed through the lib::TextTemplate engine to substitute the data and further
+ ** configuration parameters at designated places into the code. Notably, the script
+ ** performs further evaluations at run time, especially in reaction to the number
+ ** of given data rows (relying on the `stats` command of Gnuplot). Data input is
+ ** configured to CSV format and data is pasted as »here document« into a
+ ** _data block variable_ `$RunData`
+ ** 
+ ** \par simple plot
+ ** By default, the `points` plotting style is used; this can be overridden
+ ** through the placeholder #KEY_DiagramKind. All given data rows are combined
+ ** into a single plot, using a common x and y axis, and assigning consecutive
+ ** line drawing styles to each data row (from blue to green, yellow, red).
+ ** A maximum of 9 line styles is prepared for drawing. The x/y-ranges and
+ ** custom labels can be added.
+ ** 
+ ** \par scatter plot with regression line
+ ** Typically this is used for measurement data, assuming linear relation.
+ ** The data is visualised as (x,y) points, overlaying a linear regression line
+ ** plotted in red. Possibly further data rows can be given, which are then
+ ** plotted into a secondary diagram, arranged below the main measurement data
+ ** and using the same x-axis layout. This additional display is featured only
+ ** when more than 2 columns are present in the data; the number of columns is
+ ** picked up from the _second data row_ (since the first row provides the
+ ** key names used for the legend). In further rows, some data points can be
+ ** omitted. The 3rd data column will be shown as »impulse diagram«, while all
+ ** further data columns will be displayed as points, using the _secondary_
+ ** Y-axis. All axis ranges and labels can be customised. By default, the
+ ** **linear regression model** is calculated by Gnuplot, based on the
+ ** data in columns 1 and 2 (the main measurement data), yet an
+ ** alternative regression line can be defined by parameters.
+ ** 
+ ** @todo WIP 4/2024 first usage as part of Scheduler stress testing.
+ ** @see GnuplotGen_test
  */
 
 
@@ -83,9 +118,12 @@ set arrow 11 from graph 0,0 to graph 0,1.08 size screen 0.025,15,60 filled ls 10
 #   GNUPLOT - data plot from Lumiera
 #
 
-${if Term}set term ${Term} ${
+${if Term
-if TermSizeSpec}size ${TermSizeSpec}${endif}${
+}set term ${Term} ${
-endif Term}
+if TermSize}size ${TermSize}${endif}
+${else}${if TermSize
+}set term wxt size ${TermSize}
+${endif}${endif Term}
 
 set datafile separator ",;"
 
@@ -98,19 +136,20 @@ _End_of_Data_
 ${CommonStyleDef}
 ${AxisGridSetup}
 
-${if XLabel
+${if Xlabel
-}set xlabel '${XLabel}'
+}set xlabel '${Xlabel}'
 ${else
 }stats $RunData using (abscissaName=strcol(1)) every ::0::0 nooutput
 
 set xlabel abscissaName
-${end if XLabel
+${end if Xlabel
-}${if YLabel
+}${if Ylabel
-}set ylabel '${YLabel}' ${end if YLabel
+}set ylabel '${Ylabel}' ${end if Ylabel
 }
-${if Yrange}
+${if Xrange}
-set yrange [${Yrange}]
+set xrange [${Xrange}] ${endif
-${endif
+}${if Yrange}
+set yrange [${Yrange}] ${endif
 }
 set key autotitle columnheader tmargin
 
@@ -124,17 +163,23 @@ plot for [i=2:*] $RunData using 1:i with ${DiagramKind} linestyle i-1
     
     
     const string GNUPLOT_SCATTER_REGRESSION = R"~(#
-#
-####---------Scatter-Regression-Plot-------------
-#
 stats $RunData using 1:2 nooutput
 
-# draw regression line as arrow
+${if RegrSlope
+}# regression line function (given as parameter)
+regLine(x) = ${RegrSlope} * x + ${RegrSocket}
+${else
+}# regression line function derived from data
 regLine(x) = STATS_slope * x + STATS_intercept
-set arrow 1 from graph 0, first regLine(STATS_min_x) \
+${end if
-              to graph 1, first regLine(STATS_max_x) \
+}
-              nohead linestyle 9
+${if Xtics
-
+}set xtics ${Xtics}
+${else}${if Xrange}${else
+}set xrange [0:*]
+set xtics 1
+${end if}${end if Xtics
+}
 plots = STATS_columns - 1
 # Adjust layout based on number of data sequences;
 # additional sequences placed into secondary diagram
@@ -144,21 +189,22 @@ if (plots > 1) {
     set lmargin at screen 0.12   # fixed margins to align diagrams
     set rmargin at screen 0.88
 }
-####-------------------------------
+#
-plot $RunData using 1:2 with points linestyle 1
+#
+####---------Scatter-Regression-Plot-------------
+plot $RunData using 1:2 with points linestyle 1, \
+     regLine(x)         with line   linestyle 9
 
 if (plots > 1) {
     # switch off decorations for secondary diagram
-    unset arrow 1
     unset arrow 10
     unset arrow 11
     set border 2+8
     set key bmargin
-
 ${if Y2range}
     set yrange [${Y2range}]
-${endif
+${endif}
-}    unset xlabel
+    unset xlabel
     set format x ""
 ${if Y2label
 }    set ylabel '${Y2label}' ${endif
@@ -171,11 +217,13 @@ ${if Y2label
         # more than one additional data sequence
         #
 ${if Y3range
-}        set y2range [${Y3range}] ${endif
+}        set y2range [${Y3range}]
+
+${endif
 }        set y2tics
 ${if Y3label
-}        set y2label '${Y3label}'  offset -1 ${endif
+}        set y2label '${Y3label}'  offset -1.5
-}
+${endif}
         ####---------------------------------------------
         plot             $RunData using 1:3 with impulses linestyle 3, \
              for [i=4:*] $RunData using 1:i with points   linestyle 5+(i-4) axes x1y2
@@ -188,6 +236,8 @@ ${if Y3label
   
   
   
+  
+  
   /**
    * @remark each column of the given data is featured as sequence
    * over the first column interpreted as common abscissa. The name
@@ -208,6 +258,16 @@ ${if Y3label
   }
   
   
+  /**
+   * @remark the layout of this diagram differs, based on the given
+   * number of data columns. The main measurement data is expected in
+   * columns `[1:2]` and showed in the primary display, adding a
+   * regression line. When further columns are given, a `multiplot`
+   * layout is established, showing those additional related series
+   * in a second diagram below. It may be necessary to define a larger
+   * canvas with different aspect ratio, which is possibly using the
+   * placeholder #KEY_TermSize
+   */
   string
   scatterRegression (ParamRecord params)
   {

src/lib/gnuplot-gen.hpp

@@ -25,17 +25,19 @@
  ** The visualisation tool [gnuplot] allows for simple data visualisation
  ** in various formats, integrated into a *NIX commandline work environment.
  ** 
- ** The namespace lib::gnuplot_gen provides ....
+ ** The namespace lib::gnuplot_gen allows to generate diagrams relying on
+ ** some common layout schemes, which can be customised. Data is passed in
+ ** as CSV string; the generated Gnuplot script adapts dynamically to the
+ ** number of data columns given, where the first column always holds
+ ** the common x-axis values. Additional parameters can be added to
+ ** the _data binding_ used for script generation; this binding
+ ** is comprised of key = value settings in a `Rec<GenNode>`
+ ** (Lumiera's »ETD« format for structural data)
  ** 
  ** @todo 3/2024 this is an initial draft, shaped by the immediate need to visualise
  **       [measurement data](\ref vault::gear::test::SchedulerStress_test) collected
  **       while testing the new [Scheduler](\ref scheduler.hpp) implementation.
  ** 
- ** ## Usage
- ** TBW
- ** - blah
- ** - blubb
- ** 
  ** @see GnuplotGen_test
  ** @see SchedulerStress_test
  ** @see text-template.hpp
@@ -67,13 +69,21 @@ namespace gnuplot_gen { ///< preconfigured setup for Gnuplot data visualisation
   const string KEY_CSVData     = "CSVData";
   const string KEY_DiagramKind = "DiagramKind";
   
+  const string KEY_Term        = "Term";
+  const string KEY_TermSize    = "TermSize";
+  
+  const string KEY_Xtics       = "Xtics";
+  const string KEY_Xrange      = "Xrange";
   const string KEY_Yrange      = "Yrange";
   const string KEY_Y2range     = "Y2range";
   const string KEY_Y3range     = "Y3range";
   const string KEY_Xlabel      = "Xlabel";
   const string KEY_Ylabel      = "Ylabel";
   const string KEY_Y2label     = "Y2label";
-  const string KEY_Y3label     = "Y2label";
+  const string KEY_Y3label     = "Y3label";
+  
+  const string KEY_RegrSocket  = "RegrSocket";
+  const string KEY_RegrSlope   = "RegrSlope";
   
   
   

tests/15library.tests

@@ -414,7 +414,7 @@ return: 0
 END
 
 
-PLANNED "generate a Gnuplot diagram" GnuplotGen_test <<END
+TEST "generate a Gnuplot diagram" GnuplotGen_test <<END
 return: 0
 END
 

tests/library/gnuplot-gen-test.cpp

@@ -27,11 +27,10 @@
 
 
 #include "lib/test/run.hpp"
-#include "lib/test/test-helper.hpp"///////////////////////TODO
 #include "lib/gnuplot-gen.hpp"
 #include "lib/iter-explorer.hpp"
-#include "lib/format-cout.hpp"///////////////////////TODO
+#include "lib/format-cout.hpp"
-#include "lib/test/diagnostic-output.hpp"///////////////////////TODO
+#include "lib/util.hpp"
 
 using lib::stat::CSVData;
 using util::contains;
@@ -56,18 +55,11 @@ namespace test{
         {
           simpeUsage();
           plot_scatter_regression();
-          verify_keySubstituton();
+          verify_customisation();
-          verify_conditional();
-          verify_iteration();
-          verify_Map_binding();
-          verify_ETD_binding();
-
         }
       
       
-      /** @test Create simple (x,y) data point visualisation
+      /** @test Create simple (x,y) data point visualisation */
-       * @todo WIP 4/24 ✔ define ⟶ ✔ implement
-       */
       void
       simpeUsage()
         {
@@ -97,9 +89,7 @@ namespace test{
       /** @test Create a (x,y) scatter plot with regression line
        *      - in the simple case, there is only one diagram
        *      - use the `stats` command to let Gnuplot calculate the linear regression
-       *      - draw a regrsssion line using the `arrow` command
+       *      - draw a regression line as function representing the regression model
-       *        and a function representing the linear regression model
-       * @todo WIP 4/24 🔁 define ⟶ ✔ implement
        */
       void
       plot_scatter_regression()
@@ -120,7 +110,6 @@ namespace test{
           CHECK (contains (gnuplot, "\"step\",\"fib\""));
           CHECK (contains (gnuplot, "7,21.55"));
           CHECK (contains (gnuplot, "regLine(x) = STATS_slope * x + STATS_intercept"));
-          CHECK (contains (gnuplot, "set arrow 1 from graph 0, first regLine(STATS_min_x)"));
           CHECK (contains (gnuplot, "plot $RunData using 1:2 with points"));
           
           
@@ -135,7 +124,7 @@ namespace test{
                       ,{6,13, 1.3, 110    }
                       ,{7,21, 1.4, 100    }
                      }});
-          cout << gnuplot <<endl;
+//        cout << gnuplot <<endl;
           
           // more than one data row given => using multiplot layout
           CHECK (contains (gnuplot, "set multiplot"));
@@ -144,49 +133,54 @@ namespace test{
         }
       
       
-      /** @test TODO
+      /** @test various customisations through additional parameters
-       * @todo WIP 4/24 🔁 define ⟶ implement
+       *      - a custom defined regression line
+       *      - use a specific output »term« and specify canvas size
+       *      - define the common horizontal data range and x-tic spacing
+       *      - define display ranges for 3 different Y-axis
+       *      - define custom labels for all axes
+       * @note  when using additional parameters, csv data
+       *        must also be given explicitly as `KEY_CSVData`
        */
       void
-      verify_keySubstituton()
+      verify_customisation()
-        {
-          UNIMPLEMENTED ("nebbich");
-        }
-      
-      
-      /** @test TODO
-       * @todo WIP 4/24 🔁 define ⟶ implement
-       */
-      void
-      verify_conditional()
-        {
-        }
-      
-      
-      /** @test TODO
-       * @todo WIP 4/24 🔁 define ⟶ implement
-       */
-      void
-      verify_iteration()
-        {
-        }
-      
-      
-      /** @test TODO
-       * @todo WIP 4/24 🔁 define ⟶ implement
-       */
-      void
-      verify_Map_binding()
-        {
-        }
-      
-      
-      /** @test TODO
-       * @todo WIP 4/24 🔁 define ⟶ implement
-       */
-      void
-      verify_ETD_binding()
         {
+          string csv =
+              CSVData{{"abscissa","points","e1","e2","e3"}
+                     ,{{1,1 , 1.1,"" ,210}
+                      ,{2,2 , 1.2,150,220}
+                      ,{3,5 , 5.5,140}
+                     }};
+          using namespace gnuplot_gen;
+          string gnuplot = scatterRegression(
+              ParamRecord()
+                .set(KEY_CSVData , csv)
+                .set(KEY_RegrSocket, 3)
+                .set(KEY_RegrSlope, -1.5)
+                .set(KEY_Xtics  ,    2)
+                .set(KEY_Xrange , "-1:5.5")
+                .set(KEY_Yrange , "0:6")
+                .set(KEY_Y2range, "1.1:1.5")
+                .set(KEY_Y3range, "100:*")
+                .set(KEY_Xlabel , "common axis")
+                .set(KEY_Ylabel , "measurement")
+                .set(KEY_Y2label, "auxiliary-1")
+                .set(KEY_Y3label, "auxiliary-2")
+                .set(KEY_TermSize, "500,800")
+                );
+//        cout << gnuplot <<endl;
+          
+          CHECK (contains (gnuplot, "set term wxt size 500,800"));
+          CHECK (contains (gnuplot, "\"abscissa\",\"points\",\"e1\",\"e2\",\"e3\""));
+          CHECK (contains (gnuplot, "regLine(x) = -1.5 * x + 3"));
+          CHECK (contains (gnuplot, "set xlabel 'common axis'"));
+          CHECK (contains (gnuplot, "set ylabel 'measurement'"));
+          CHECK (contains (gnuplot, "set xrange [-1:5.5]"));
+          CHECK (contains (gnuplot, "set yrange [0:6]"));
+          CHECK (contains (gnuplot, "set yrange [1.1:1.5]"));
+          CHECK (contains (gnuplot, "set ylabel 'auxiliary-1'"));
+          CHECK (contains (gnuplot, "set y2range [100:*]"));
+          CHECK (contains (gnuplot, "set y2label 'auxiliary-2'"));
         }
     };
   

wiki/thinkPad.ichthyo.mm

@@ -112386,13 +112386,13 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1710079820663" ID="ID_346209836" MODIFIED="1712107106974" TEXT="ein gnuplot-Skript generieren">
+<node COLOR="#338800" CREATED="1710079820663" ID="ID_346209836" MODIFIED="1712165155677" TEXT="ein Gnuplot-Skript generieren">
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1710633755833" ID="ID_395770848" MODIFIED="1710633858137" TEXT="Grundlagen Gnuplot lernen">
+<node BACKGROUND_COLOR="#b6c3c8" COLOR="#2a44ae" CREATED="1710633755833" ID="ID_395770848" MODIFIED="1712165207008" TEXT="Grundlagen Gnuplot lernen">
 <arrowlink COLOR="#425fc8" DESTINATION="ID_1898552649" ENDARROW="Default" ENDINCLINATION="-1042;110;" ID="Arrow_ID_1130805562" STARTARROW="None" STARTINCLINATION="-1030;94;"/>
 <icon BUILTIN="info"/>
 </node>
-<node COLOR="#338800" CREATED="1710079859600" ID="ID_1865864348" MODIFIED="1711767335018" TEXT="Skript aufbauen">
+<node COLOR="#338800" CREATED="1710079859600" FOLDED="true" ID="ID_1865864348" MODIFIED="1711767335018" TEXT="Skript aufbauen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1710079895431" ID="ID_129580336" MODIFIED="1711767148348" TEXT="inline-CSV lesen">
 <icon BUILTIN="button_ok"/>
@@ -112406,8 +112406,25 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 <node COLOR="#338800" CREATED="1711740556574" ID="ID_539287826" MODIFIED="1711767325444" TEXT="Regressionslinie">
 <icon BUILTIN="button_ok"/>
-<node CREATED="1711767163798" ID="ID_1994488422" MODIFIED="1711767172498" TEXT="entweder eine Kurven-Funktion definieren"/>
+<node CREATED="1711767163798" ID="ID_1994488422" MODIFIED="1712158862171" TEXT="entweder eine Kurven-Funktion definieren">
-<node CREATED="1711671270918" ID="ID_945426768" LINK="http://gnuplot.info/docs_5.5/loc9771.html" MODIFIED="1711767205997" TEXT="oder einen &#xbb;Arrow&#xab; verwenden und Koordinaten ausrechnen"/>
+<icon BUILTIN="forward"/>
+</node>
+<node COLOR="#5b280f" CREATED="1711671270918" ID="ID_945426768" LINK="http://gnuplot.info/docs_5.5/loc9771.html" MODIFIED="1712158772924" TEXT="oder einen &#xbb;Arrow&#xab; verwenden und Koordinaten ausrechnen">
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1712158776473" ID="ID_616853093" MODIFIED="1712158927050" TEXT="ist letztlich keine gute Idee">
+<linktarget COLOR="#913855" DESTINATION="ID_616853093" ENDARROW="Default" ENDINCLINATION="224;23;" ID="Arrow_ID_376194184" SOURCE="ID_651930519" STARTARROW="None" STARTINCLINATION="430;-45;"/>
+</node>
+<node CREATED="1712158783773" ID="ID_1132746832" MODIFIED="1712158847988" TEXT="weil man die Anfangs / Endpunkte explizit ausrechnen mu&#xdf;">
+<richcontent TYPE="NOTE"><html>
+  <head/>
+  <body>
+    <p>
+      ...was nicht m&#246;glich ist, sofern man Gnuplot irgendwie den xrange automatisch bestimmen l&#228;&#223;t (dann ist der xrange n&#228;mlich erst <i>nach</i>&#160; dem Plotten bekannt)
+    </p>
+  </body>
+</html></richcontent>
+</node>
+</node>
 </node>
 <node COLOR="#338800" CREATED="1710079916553" ID="ID_1466798395" MODIFIED="1711767279959" TEXT="Legende hinzuf&#xfc;gen">
 <icon BUILTIN="button_ok"/>
@@ -114334,8 +114351,8 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1711767367983" ID="ID_447481681" MODIFIED="1711904772361" TEXT="geignet in Templating &#xfc;bersetzen">
+<node COLOR="#338800" CREATED="1711767367983" ID="ID_447481681" MODIFIED="1712165061379" TEXT="geignet in Templating &#xfc;bersetzen">
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1711815238130" ID="ID_644083123" MODIFIED="1711815256928" TEXT="Grundidee: Bausteine + externe Steuer-Mechanik">
 <icon BUILTIN="idea"/>
 <node CREATED="1711815907291" ID="ID_530652307" MODIFIED="1711815930539" TEXT="Templates relativ &#xbb;dumm&#xab; halten"/>
@@ -114352,7 +114369,7 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 <node CREATED="1711816185232" ID="ID_301292459" MODIFIED="1711816215559" TEXT="Range-Grenzen und Namen der Achsenbeschriftungen"/>
 <node CREATED="1711816271564" ID="ID_1862603482" MODIFIED="1711816277255" TEXT="Parameter der Regressionslinie"/>
 </node>
-<node COLOR="#338800" CREATED="1711816316013" ID="ID_1527861975" MODIFIED="1711904757510" TEXT="Rahmen schaffen">
+<node COLOR="#338800" CREATED="1711816316013" FOLDED="true" ID="ID_1527861975" MODIFIED="1711904757510" TEXT="Rahmen schaffen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1711816320800" ID="ID_310548089" MODIFIED="1711845412382" TEXT="separate Translation-Unit">
 <icon BUILTIN="button_ok"/>
@@ -114377,10 +114394,10 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1711816503707" ID="ID_1610562996" MODIFIED="1711816512171" TEXT="Hilfsmittel zur Aufbereitung">
+<node COLOR="#338800" CREATED="1711816503707" ID="ID_1610562996" MODIFIED="1712163894228" TEXT="Hilfsmittel zur Aufbereitung">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1711816605957" ID="ID_1301642198" MODIFIED="1711816625887" TEXT="Notation f&#xfc;r Parmeter-Konfiguration">
+<node COLOR="#338800" CREATED="1711816605957" ID="ID_1301642198" MODIFIED="1712163895261" TEXT="Notation f&#xfc;r Parmeter-Konfiguration">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1711816632267" ID="ID_243539327" MODIFIED="1711816646604" TEXT="auf ETD / MakeRec() aufbauen"/>
 <node CREATED="1711816648544" ID="ID_1216726530" MODIFIED="1711816663402" TEXT="damit ist auch die String-Konvertierung schon gew&#xe4;hrleistet"/>
 </node>
@@ -114449,8 +114466,8 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 <node CREATED="1711900361616" ID="ID_1245877883" MODIFIED="1711900371643" TEXT="dann gibt es zus&#xe4;tzliche Builder, die schon Teile vorbereiten"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1711820846814" ID="ID_131434294" MODIFIED="1712107103288" TEXT="Template-Bausteine">
+<node COLOR="#338800" CREATED="1711820846814" ID="ID_131434294" MODIFIED="1712165063590" TEXT="Template-Bausteine">
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1711820852404" ID="ID_1098550176" MODIFIED="1711904777126" TEXT="einfacher Daten-Plot">
 <icon BUILTIN="button_ok"/>
 <node CREATED="1711820876736" ID="ID_1449855332" MODIFIED="1711820912379" TEXT="gemeinsame Abszisse + 1...9 Datenreihen"/>
@@ -114550,8 +114567,8 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 </node>
 <node COLOR="#338800" CREATED="1712101781128" ID="ID_304832758" MODIFIED="1712105281865" TEXT="Regrssions-Parameter">
 <icon BUILTIN="button_ok"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1712101788544" ID="ID_703744386" MODIFIED="1712105228379" TEXT="kann man entweder vom User durchgeben lassen">
+<node COLOR="#338800" CREATED="1712101788544" ID="ID_703744386" MODIFIED="1712165123948" TEXT="kann man entweder vom User durchgeben lassen">
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="button_ok"/>
 </node>
 <node COLOR="#338800" CREATED="1712101798926" ID="ID_259712004" MODIFIED="1712105225760" TEXT="...oder von Gnuplot selber bestimmen">
 <icon BUILTIN="button_ok"/>
@@ -114562,9 +114579,15 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 <node COLOR="#338800" CREATED="1712105236313" ID="ID_445047208" MODIFIED="1712105251309" TEXT="Hierf&#xfc;r Funktion regLine(x) in gnuplot definieren">
 <icon BUILTIN="button_ok"/>
 </node>
-<node COLOR="#338800" CREATED="1712105256166" ID="ID_411655467" MODIFIED="1712105278628" TEXT="&#x27f9; diese dann verwenden f&#xfc;r arrow-command">
+<node COLOR="#5b280f" CREATED="1712105256166" ID="ID_411655467" MODIFIED="1712158873748" TEXT="&#x27f9; diese dann verwenden f&#xfc;r arrow-command">
-<icon BUILTIN="button_ok"/>
+<icon BUILTIN="button_cancel"/>
+<node CREATED="1712158876637" ID="ID_651930519" MODIFIED="1712158927049" TEXT="das ist problematisch">
+<arrowlink COLOR="#913855" DESTINATION="ID_616853093" ENDARROW="Default" ENDINCLINATION="224;23;" ID="Arrow_ID_376194184" STARTARROW="None" STARTINCLINATION="430;-45;"/>
+<icon BUILTIN="stop-sign"/>
 </node>
+<node CREATED="1712158885400" ID="ID_595958717" MODIFIED="1712158893497" TEXT="und unn&#xf6;tig, wenn wir schon die Funktion haben"/>
+</node>
+<node CREATED="1712159156179" ID="ID_986549444" MODIFIED="1712159169384" TEXT="stattdessen regLine(x) direkt mit plotten"/>
 </node>
 </node>
 </node>
@@ -114590,9 +114613,9 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1711820647889" ID="ID_149856563" MODIFIED="1711845599165" TEXT="GnuplotGen_test">
+<node COLOR="#338800" CREATED="1711820647889" ID="ID_149856563" MODIFIED="1712165118129" TEXT="GnuplotGen_test">
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
-<node COLOR="#338800" CREATED="1711820662341" ID="ID_1728359549" MODIFIED="1712107237930" TEXT="einfachster Testfall: ein Daten-Punkt-Plot">
+<node COLOR="#338800" CREATED="1711820662341" FOLDED="true" ID="ID_1728359549" MODIFIED="1712165149775" TEXT="einfachster Testfall: ein Daten-Punkt-Plot">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1711845516384" ID="ID_1778551442" MODIFIED="1711845526641" TEXT="kann einfaches Diagramm generieren">
 <icon BUILTIN="button_ok"/>
@@ -114610,23 +114633,20 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1712107249502" ID="ID_758586411" MODIFIED="1712107251833" TEXT="plot_scatter_regression">
+<node COLOR="#338800" CREATED="1712107249502" FOLDED="true" ID="ID_758586411" MODIFIED="1712165147408" TEXT="plot_scatter_regression">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#5b280f" CREATED="1712107263609" ID="ID_1696889047" MODIFIED="1712107278412" TEXT="Verifikation hat ihre Grenzen">
 <icon BUILTIN="yes"/>
 <icon BUILTIN="stop-sign"/>
 <node CREATED="1712107282261" ID="ID_848988536" MODIFIED="1712107365616" TEXT="bedingt durch die Logik im Gnuplot-Skript">
 <richcontent TYPE="NOTE"><html>
-  <head>
+  <head/>
-    
-  </head>
   <body>
     <p>
       man kann hier eigentlich nur stichprobenartig verifizieren, da&#223; das jeweilige Template zum Einsatz kam, und da&#223; einige markante Werte per Text-Templating eingebaut wurden. Also z.B. die Datenheader, oder eine Achsenbeschriftung.
     </p>
   </body>
-</html>
+</html></richcontent>
-</richcontent>
 </node>
 <node COLOR="#5b280f" CREATED="1712107290460" ID="ID_352326813" MODIFIED="1712107309763" TEXT="wir k&#xf6;nnen / wollen nicht Gnuplot in der Testsuite aufrufen">
 <icon BUILTIN="closed"/>
@@ -114639,7 +114659,26 @@ std::cout &lt;&lt; tmpl.render({&quot;what&quot;, &quot;World&quot;}) &lt;&lt; s
 </node>
 </node>
 </node>
+<node COLOR="#338800" CREATED="1712157571036" FOLDED="true" ID="ID_594850034" MODIFIED="1712165148496" TEXT="verify_customisation">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1712157579419" ID="ID_862141948" MODIFIED="1712165115431" TEXT="durch manuelle Inspektion pr&#xfc;fen">
+<icon BUILTIN="button_ok"/>
+<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1712157601048" ID="ID_1356431130" MODIFIED="1712165112964" TEXT="kommen alle gesetzten Einstellungen im Skript an?"/>
+<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1712157633183" ID="ID_182422803" MODIFIED="1712165112964" TEXT="sind die Bereiche korrekt gesetzt?"/>
+<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1712157642106" ID="ID_1203874444" MODIFIED="1712165112964" TEXT="stimmt die Regressionsline auch mit xrange?">
+<node CREATED="1712158732758" ID="ID_1254764279" MODIFIED="1712158748896" TEXT="zeigt sich: ist so nicht realisierbar"/>
+<node CREATED="1712165090926" ID="ID_1866837123" MODIFIED="1712165099841" TEXT="stattdessen : Funktion verwenden"/>
 </node>
+<node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1712165101021" ID="ID_1355216021" MODIFIED="1712165112964" TEXT="Fall-back wenn keine x-range gegeben"/>
+</node>
+<node COLOR="#338800" CREATED="1712165069402" ID="ID_1643060238" MODIFIED="1712165081801" TEXT="enige Verifikationen f&#xfc;r durchgereichte Konfiguration">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
+</node>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1712165247528" ID="ID_1095964212" MODIFIED="1712165254925" TEXT="Regression berechnen und visualisieren">
+<icon BUILTIN="flag-yellow"/>
 </node>
 </node>
 </node>