Remove plotting of logit QRE from GUI

ChangeLog

@@ -1,5 +1,10 @@
 # Changelog
 
+## [16.7.0] - unreleased
+
+### Removed
+- Built-in plotting of logit QRE for strategic games has been removed in the GUI (#809)
+
 ## [16.6.0] - 2026-03-24
 
 ### Changed

Makefile.am

@@ -27,32 +27,7 @@ EXTRA_DIST = \
 	build_support/osx/Info.plist.in \
 	build_support/osx/gambit.icns \
 	src/labenski/README.txt \
-	src/labenski/art/grab.xpm \
-	src/labenski/art/hand.xpm \
-	src/labenski/art/ledgreen.xpm \
-	src/labenski/art/ledgrey.xpm \
-	src/labenski/doc/README-plotctrl.txt \
 	src/labenski/doc/README-sheet.txt \
-	src/labenski/doc/README-wxthings.txt \
-	src/labenski/include/wx/wxthings/bitmaps/copy.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/cut.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/findnext.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/find.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/grab.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/hand.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/help.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/new.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/open.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/paste.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/preview.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/print.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/question.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/redo.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/replace.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/saveall.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/saveas.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/spell.xpm \
-	src/labenski/include/wx/wxthings/bitmaps/undo.xpm \
 	src/gui/bitmaps/about.xpm \
 	src/gui/bitmaps/adddecimal.xpm \
 	src/gui/bitmaps/calc.xpm \
@@ -493,35 +468,6 @@ gambit_SOURCES = \
 	src/labenski/src/sheetsel.cpp \
 	src/labenski/src/sheetspt.cpp \
 	src/labenski/src/sheettbl.cpp \
-	src/labenski/src/block.cpp \
-	src/labenski/src/genergdi.cpp \
-	src/labenski/src/geometry.cpp \
-	src/labenski/src/optvalue.cpp \
-	src/labenski/src/range.cpp \
-	src/labenski/src/spinctld.cpp \
-	src/labenski/src/toggle.cpp \
-	src/labenski/src/fparser.cpp \
-	src/labenski/src/fparser.hh \
-	src/labenski/src/fourier.c \
-	src/labenski/src/lm_lsqr.cpp \
-	src/labenski/src/plotctrl.cpp \
-	src/labenski/src/plotcurv.cpp \
-	src/labenski/src/plotdata.cpp \
-	src/labenski/src/plotdraw.cpp \
-	src/labenski/src/plotfunc.cpp \
-	src/labenski/src/plotmark.cpp \
-	src/labenski/src/plotprnt.cpp \
-	src/labenski/include/wx/plotctrl/fourier.h \
-	src/labenski/include/wx/plotctrl/fparser.h \
-	src/labenski/include/wx/plotctrl/lm_lsqr.h \
-	src/labenski/include/wx/plotctrl/plotctrl.h \
-	src/labenski/include/wx/plotctrl/plotcurv.h \
-	src/labenski/include/wx/plotctrl/plotdata.h \
-	src/labenski/include/wx/plotctrl/plotdefs.h \
-	src/labenski/include/wx/plotctrl/plotdraw.h \
-	src/labenski/include/wx/plotctrl/plotfunc.h \
-	src/labenski/include/wx/plotctrl/plotmark.h \
-	src/labenski/include/wx/plotctrl/plotprnt.h \
 	src/labenski/include/wx/sheet/pairarr.h \
 	src/labenski/include/wx/sheet/sheetatr.h \
 	src/labenski/include/wx/sheet/sheetdef.h \
@@ -532,17 +478,6 @@ gambit_SOURCES = \
 	src/labenski/include/wx/sheet/sheetsel.h \
 	src/labenski/include/wx/sheet/sheetspt.h \
 	src/labenski/include/wx/sheet/sheettbl.h \
-	src/labenski/include/wx/wxthings/block.h \
-	src/labenski/include/wx/wxthings/bmpcombo.h \
-	src/labenski/include/wx/wxthings/dropdown.h \
-	src/labenski/include/wx/wxthings/genergdi.h \
-	src/labenski/include/wx/wxthings/geometry.h \
-	src/labenski/include/wx/wxthings/medsort.h \
-	src/labenski/include/wx/wxthings/optvalue.h \
-	src/labenski/include/wx/wxthings/range.h \
-	src/labenski/include/wx/wxthings/spinctld.h \
-	src/labenski/include/wx/wxthings/thingdef.h \
-	src/labenski/include/wx/wxthings/toggle.h \
 	src/gui/analysis.cc \
 	src/gui/analysis.h \
 	src/gui/app.cc \
@@ -572,6 +507,7 @@ gambit_SOURCES = \
 	src/gui/dlnashmon.cc \
 	src/gui/dlnashmon.h \
 	src/gui/dlnfglogit.cc \
+	src/gui/dlnfglogit.h \
 	src/gui/efgdisplay.cc \
 	src/gui/efgdisplay.h \
 	src/gui/efglayout.cc \

doc/gui.nash.rst

@@ -164,41 +164,3 @@ separated values) file by clicking the button labeled
 :guilabel:`Save correspondence to .csv file`.
 This format is suitable for reading by a
 spreadsheet or graphing application.
-
-
-
-Quantal response equilibria in strategic games (experimental)
--------------------------------------------------------------
-
-There is an experimental graphing interface for quantal response
-equilibria in strategic games.
-The graph by default plots the probabilities of all strategies, color-
-coded by player, as a function of the lambda parameter. The lambda
-values on the horizontal axis are plotted using a sigmoid
-transformation; the Graph scaling value controls the shape of this
-transformation. Lower values of the scaling give more graph space to
-lower values of lambda; higher values of the scaling give more space
-to higher values of lambda.
-
-.. image::  screens/logit.*
-            :width: 33%
-            :alt: quantal response equilibria graphing
-            :align: right
-            :target: _images/logit.png
-
-The strategies graphed are indicated in the panel at the left of the
-window. Clicking on the checkbox next to a strategy toggles whether it
-is displayed in the graph.
-
-The data points computed in the correspondence can be viewed (as in
-the extensive game example above) by clicking on the show data icon on
-the toolbar. The data points can be saved to a CSV file by clicking on
-the .
-
-To zoom in on a portion of the graph of interest, hold down the left
-mouse button and drag a rectangle on the graph. The plot window zooms
-in on the portion of the graph selected by that rectangle. To restore
-the graph view to the full graph, click on the zoom to fit icon .
-
-To print the graph as shown, click on the print icon . Note that this
-is very experimental, and the output may not be very satisfactory yet.