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+%--------------------------------------------
+%
+% Package pgfplots
+%
+% Provides a user-friendly interface to create function plots (normal
+% plots, semi-logplots and double-logplots).
+%
+% It is based on Till Tantau's PGF package.
+%
+% Copyright 2009 by Nick Papior Andersen.
+%
+% This program is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program. If not, see <http://www.gnu.org/licenses/>.
+%
+%--------------------------------------------
+
+\newif\ifpgfplots@group@sharedlabels
+
+\def\pgfplots@group@xticklabels{}
+\def\pgfplots@group@yticklabels{}
+\def\pgfplots@group@xlabels{}
+\def\pgfplots@group@ylabels{}
+\def\pgfplots@group@totalplots{1}
+\def\pgfplots@group@columns{1}
+\def\pgfplots@group@rows{1}
+\def\pgfplots@group@name{group}
+\def\pgfplots@group@style{}
+\gdef\pgfplots@group@rmopts{}
+\newcount\pgfplots@group@current@plot
+\newcount\pgfplots@group@current@row
+\newcount\pgfplots@group@current@column
+
+\usetikzlibrary{calc}
+
+\pgfkeys{
+ /pgfplots/group/.is family,
+ /pgfplots/group style/.store in=\pgfplots@group@style,
+ /pgfplots/group/horizontal sep/.initial=1cm,
+ /pgfplots/group/vertical sep/.initial=1cm,
+ /pgfplots/group/group size/.style args={#1 by #2}{/pgfplots/group/columns=#1,/pgfplots/group/rows=#2},
+ /pgfplots/group/group size/.default={1 by 1},
+ /pgfplots/group/columns/.store in=\pgfplots@group@columns,
+ /pgfplots/group/rows/.store in=\pgfplots@group@rows,
+ /pgfplots/group/every plot/.style=,
+ /pgfplots/group/shared labels/.is if=pgfplots@group@sharedlabels,
+ /pgfplots/group/shared labels=false,
+ /pgfplots/group/xticklabels at/.is choice,
+ /pgfplots/group/xticklabels at/all/.code=\def\pgfplots@group@xticklabels{all},
+ /pgfplots/group/xticklabels at/edge top/.code=\def\pgfplots@group@xticklabels{top},
+ /pgfplots/group/xticklabels at/edge bottom/.code=\def\pgfplots@group@xticklabels{lower},
+ /pgfplots/group/xticklabels at/edge left/.code=\def\pgfplots@group@xticklabels{left}, % TODO
+ /pgfplots/group/xticklabels at/edge right/.code=\def\pgfplots@group@xticklabels{right}, % TODO
+ /pgfplots/group/xticklabels at=all,
+ /pgfplots/group/yticklabels at/.is choice,
+ /pgfplots/group/yticklabels at/all/.code=\def\pgfplots@group@yticklabels{all},
+ /pgfplots/group/yticklabels at/edge left/.code=\def\pgfplots@group@yticklabels{left},
+ /pgfplots/group/yticklabels at/edge right/.code=\def\pgfplots@group@yticklabels{right},
+ /pgfplots/group/yticklabels at/edge top/.code=\def\pgfplots@group@yticklabels{top}, % TODO
+ /pgfplots/group/yticklabels at/edge bottom/.code=\def\pgfplots@group@yticklabels{bottom}, % TODO
+ /pgfplots/group/yticklabels at=all,
+ /pgfplots/group/xlabels at/.is choice,
+ /pgfplots/group/xlabels at/all/.code=\def\pgfplots@group@xlabels{all},
+ /pgfplots/group/xlabels at/edge top/.code=\def\pgfplots@group@xlabels{top},
+ /pgfplots/group/xlabels at/edge bottom/.code=\def\pgfplots@group@xlabels{lower},
+ /pgfplots/group/xlabels at/edge right/.code=\def\pgfplots@group@xlabels{right}, % TODO
+ /pgfplots/group/xlabels at/edge left/.code=\def\pgfplots@group@xlabels{left},% TODO
+ /pgfplots/group/xlabels at=all,
+ /pgfplots/group/ylabels at/.is choice,
+ /pgfplots/group/ylabels at/all/.code=\def\pgfplots@group@ylabels{all},
+ /pgfplots/group/ylabels at/edge left/.code=\def\pgfplots@group@ylabels{left},
+ /pgfplots/group/ylabels at/edge right/.code=\def\pgfplots@group@ylabels{right},
+ /pgfplots/group/ylabels at/edge top/.code=\def\pgfplots@group@ylabels{top}, % TODO
+ /pgfplots/group/ylabels at/edge bottom/.code=\def\pgfplots@group@ylabels{bottom}, % TODO
+ /pgfplots/group/ylabels at=all,
+ /pgfplots/group/x descriptions at/.is choice,
+ /pgfplots/group/x descriptions at/all/.style={
+ /pgfplots/group/xlabels at=all,
+ /pgfplots/group/xticklabels at=all
+ },
+ /pgfplots/group/x descriptions at/edge bottom/.style={
+ /pgfplots/group/xlabels at=edge bottom,
+ /pgfplots/group/xticklabels at=edge bottom
+ },
+ /pgfplots/group/x descriptions at/edge top/.style={
+ /pgfplots/group/xlabels at=edge top,
+ /pgfplots/group/xticklabels at=edge top
+ },
+ /pgfplots/group/y descriptions at/.is choice,
+ /pgfplots/group/y descriptions at/all/.style={
+ /pgfplots/group/ylabels at=all,
+ /pgfplots/group/yticklabels at=all
+ },
+ /pgfplots/group/y descriptions at/edge left/.style={
+ /pgfplots/group/ylabels at=edge left,
+ /pgfplots/group/yticklabels at=edge left
+ },
+ /pgfplots/group/y descriptions at/edge right/.style={
+ /pgfplots/group/ylabels at=edge right,
+ /pgfplots/group/yticklabels at=edge right
+ },
+ /pgfplots/group/group name/.store in=\pgfplots@group@name,
+ /pgfplots/group/empty plot/.style={/pgfplots/hide axis=true},
+ /pgfplots/trim axis group left/.code={%
+ \pgfutil@ifundefined{pgfsettrimleft}{%
+ \pgfplots@error{Sorry, the 'trim axis group left' requires a more recent PGF version.}%
+ }{%
+ \pgfkeysalso{/tikz/trim left={(group c1r1.south west)}}%
+ }%
+ },%
+ /tikz/trim axis group left/.style={/pgfplots/trim axis group left},
+ /pgfplots/trim axis group right/.code={%
+ \pgfutil@ifundefined{pgfsettrimleft}{%
+ \pgfplots@error{Sorry, the 'trim axis group right' requires a more recent PGF version.}%
+ }{%
+ \pgfkeysalso{/pgfplots/trim axis right}%
+ }%
+ },%
+ /tikz/trim axis group right/.style={/pgfplots/trim axis group right},
+}
+\pgfkeys{
+ /pgfplots/warning/groupplots/too many plots/.code 2 args={%
+ \pgfplotsthrow@warning{You are adding more plots than you specified, current plots=#1\space vs. total allowed
+ plots=#2.}%
+ },
+}
+
+\def\nextgroupplot{%
+ \pgfutil@ifnextchar[{\pgfplots@group@nextplot}{\pgfplots@group@nextplot[]}%}
+}
+
+%
+% The actual addition of the new plots
+%
+\def\pgfplots@group@nextplot[#1]{%
+ % Check if it legal to produce another plot
+ \ifnum\pgfplots@group@current@plot=\pgfplots@group@totalplots\relax
+ \pgfplotswarning{groupplots/too many plots}{\the\pgfplots@group@current@plot}{\pgfplots@group@totalplots}\pgfeov
+ \else
+ %
+ % If there has been other plots before then end the plot
+ %
+ \ifnum0<\pgfplots@group@current@plot\relax
+ % DEBUG: \message{DEBUG: Ending plot}
+ \endpgfplots@environment@opt
+ \fi
+ % Prepare for next plot, increment plot, row and column
+ \pgfplots@group@increment@numbers
+ % DEBUG: \message{DEBUG: Cur. Plot: \the\pgfplots@group@current@plot. Current Row: \the\pgfplots@group@current@row. Current Column: \the\pgfplots@group@current@column.}
+ % Creation of the new axis environment
+ \pgfplots@group@environment@create{#1}
+ \fi
+}
+%
+% This creates an environment according to which plots that have been typeset.
+% The code utilizes previous plots anchor points to position themselves, unless it's the
+% first plot.
+% Using the figure below to describe the code implementation:
+% ____ ____ ____
+%| | | | | |
+%| 1 | | 2 | | 3 |
+%|___| |___| |___|
+% ____ ____ ____
+%| | | | | |
+%| 4 | | 5 | | 6 |
+%|___| |___| |___|
+% ____ ____ ____
+%| | | | | |
+%| 7 | | 8 | | 9 |
+%|___| |___| |___|
+%
+% The plots anchors are as follows:
+% 1: plot is typeset normally
+% 2: the "1" plot anchor "east" is anchored to "west"
+% 3: the "2" plot anchor "east" is anchored to "west"
+% 4: the "1" plot anchor "south" is anchored to "north"
+% 5: the "2" plot anchor "south" is anchored to "north"
+% 6: the "3" plot anchor "south" is anchored to "north"
+% 7: the "4" plot anchor "south" is anchored to "north"
+% 8: the "5" plot anchor "south" is anchored to "north"
+% 9: the "6" plot anchor "south" is anchored to "north"
+%
+\def\pgfplots@group@environment@create#1{%
+ \ifnum1=\pgfplots@group@current@row\relax
+ \ifnum1=\pgfplots@group@current@column\relax
+ \pgfplots@environment@opt[name={\pgfplots@group@name\space c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row},%
+ /pgfplots/group/every plot,%
+ /pgfplots/group/plot c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row,%
+ #1]
+ \else
+ \pgfplotsgroupplotsmath@decrease\pgfplots@group@current@column
+ \xdef\pgfplots@glob@TMPb{\pgfplots@group@name\space c\pgfmathresult r\the\pgfplots@group@current@row}
+ \pgfplots@environment@opt[name={\pgfplots@group@name\space c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row},%
+ /pgfplots/group/every plot,%
+ /pgfplots/group/plot c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row,%
+ at={($(\pgfplots@glob@TMPb.east)+(\pgfkeysvalueof{/pgfplots/group/horizontal sep},0)$)},anchor=west,%
+ #1]
+ \fi
+ \else
+ \pgfplotsgroupplotsmath@decrease\pgfplots@group@current@row
+ \xdef\pgfplots@glob@TMPb{\pgfplots@group@name\space c\the\pgfplots@group@current@column r\pgfmathresult}
+ \pgfplots@environment@opt[name={\pgfplots@group@name\space c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row},%
+ /pgfplots/group/every plot,%
+ /pgfplots/group/plot c\the\pgfplots@group@current@column r\the\pgfplots@group@current@row,%
+ at={($(\pgfplots@glob@TMPb.south)-(0,\pgfkeysvalueof{/pgfplots/group/vertical sep})$)},anchor=north,%
+ #1]%
+ \fi%
+}
+
+%
+% Determine the labels of both x and y.
+%
+\def\pgfplots@group@determine@labels{%
+ \def\pgfplots@loc@TMPa{all}%
+ \def\pgfplots@loc@TMPb{lower}%
+ \ifx\pgfplots@loc@TMPa\pgfplots@group@xlabels%
+ % xlabels at=all
+ % Do nothing as all should have xlabels
+ \fi
+ \gdef\pgfplots@glob@TMPa{}%
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@xlabels%
+ % xlabels at=lower
+ \ifnum1<\pgfplots@group@rows\relax
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \ifnum\pgfplots@row=\pgfplots@group@rows\relax%
+ \else
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/xlabel={},%
+ \ifpgfplots@units@use/pgfplots/x unit={}\fi
+ }%
+ }%
+ \fi
+ }%
+ }%
+ \fi%
+ \else
+ \def\pgfplots@loc@TMPb{top}%
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@xlabels%
+ % xlabels at=top
+ \ifnum1<\pgfplots@group@rows\relax
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \ifnum\pgfplots@row=1 %
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={/pgfplots/xticklabel pos=upper}}%
+ \else
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/xlabel={},%
+ \ifpgfplots@units@use/pgfplots/x unit={}\fi%
+ }%
+ }%
+ \fi
+ }%
+ }%
+ \fi%
+ \fi
+ \fi
+ %
+ % Defining styles for the y's
+ %
+ \ifx\pgfplots@loc@TMPa\pgfplots@group@ylabels%
+ % ylabels at=all
+ % Do nothing as all should have ylabels
+ \else
+ \def\pgfplots@loc@TMPb{left}%
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@ylabels%
+ % ylabels at=left
+ \ifnum1<\pgfplots@group@columns\relax
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \foreach \pgfplots@column in {2,...,\pgfplots@group@columns} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/ylabel={},%
+ \ifpgfplots@units@use/pgfplots/y unit={}\fi%
+ }%
+ }%
+ }%
+ }%
+ \fi%
+ \else
+ \def\pgfplots@loc@TMPb{right}%
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@ylabels%
+ % ylabels at=right
+ \ifnum1<\pgfplots@group@columns\relax
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \ifnum\pgfplots@column=\pgfplots@group@columns\relax
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={/pgfplots/yticklabel pos=upper}}%
+ \else
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/ylabel={},%
+ \ifpgfplots@units@use/pgfplots/y unit={}\fi%
+ }%
+ }%
+ \fi
+ }%
+ }%
+ \fi
+ \fi%
+ \fi
+ \fi
+ \expandafter\pgfkeys\expandafter{\pgfplots@glob@TMPa}%
+}
+
+%
+% Determine the ticklabels of both x and y.
+%
+\def\pgfplots@group@determine@ticklabels{%
+ \def\pgfplots@loc@TMPa{all}%
+ \def\pgfplots@loc@TMPb{top}%
+ \def\pgfplots@loc@TMPc{lower}%
+ \ifx\pgfplots@loc@TMPa\pgfplots@group@xticklabels%
+ % Do nothing as all should have xticklabels
+ \fi
+ \gdef\pgfplots@glob@TMPa{}
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@xticklabels%
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r1/.append style={%
+ xticklabel pos=upper}}%
+ \ifnum1<\pgfplots@group@rows\relax
+ \foreach \pgfplots@row in {2,...,\pgfplots@group@rows} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/xticklabels={},/pgfplots/xtick scale label code/.code={}}}%
+ }%
+ \fi%
+ }%
+ \fi
+ \ifx\pgfplots@loc@TMPc\pgfplots@group@xticklabels%
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@group@rows/.append style={%
+ xticklabel pos=lower}}%
+ \ifnum1<\pgfplots@group@rows\relax
+ \pgfplotsgroupplotsmath@decrease\pgfplots@group@rows
+ \foreach \pgfplots@row in {1,...,\pgfmathresult} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/xticklabels={},/pgfplots/xtick scale label code/.code={}}}%
+ }%
+ \fi%
+ }%
+ \fi%
+ %
+ % Defining styles for the ytick's
+ %
+ \def\pgfplots@loc@TMPa{all}%
+ \def\pgfplots@loc@TMPb{left}%
+ \def\pgfplots@loc@TMPc{right}%
+ \ifx\pgfplots@loc@TMPa\pgfplots@group@yticklabels%
+ % Do nothing as all should have yticklabels
+ \fi
+ \ifx\pgfplots@loc@TMPb\pgfplots@group@yticklabels%
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c1r\pgfplots@row/.append style={yticklabel pos=left}}%
+ \ifnum1<\pgfplots@group@columns\relax
+ \foreach \pgfplots@column in {2,...,\pgfplots@group@columns} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/yticklabels={}, /pgfplots/ytick scale label code/.code={}}}%
+ }%
+ \fi%
+ }%
+ \fi
+ \ifx\pgfplots@loc@TMPc\pgfplots@group@yticklabels%
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@group@columns r\pgfplots@row/.append style={%
+ yticklabel pos=right}}%
+ \ifnum1<\pgfplots@group@columns\relax
+ \pgfplotsgroupplotsmath@decrease\pgfplots@group@columns
+ \foreach \pgfplots@column in {1,...,\pgfmathresult} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.append style={%
+ /pgfplots/yticklabels={}, /pgfplots/ytick scale label code/.code={}}}%
+ }%
+ \fi%
+ }%
+ \fi%
+ \expandafter\pgfkeys\expandafter{\pgfplots@glob@TMPa}%
+}
+
+%
+% The counters which are used to determine the current plot:
+% \pgfplots@group@current@plot
+% \pgfplots@group@current@column
+% \pgfplots@group@current@row
+% gets incremented according to the scheme below:
+% ____ ____ ____
+%| | | | | |
+%| 1 | | 2 | | 3 |
+%|___| |___| |___|
+% ____ ____ ____
+%| | | | | |
+%| 4 | | 5 | | 6 |
+%|___| |___| |___|
+% ____ ____ ____
+%| | | | | |
+%| 7 | | 8 | | 9 |
+%|___| |___| |___|
+% where the number matches the plot number.
+%
+\def\pgfplots@group@increment@numbers{%
+ \advance\pgfplots@group@current@plot by1
+ \ifnum\pgfplots@group@current@column=\pgfplots@group@columns\relax
+ \ifnum1=\pgfplots@group@current@plot\relax
+ \else
+ \advance\pgfplots@group@current@row by1
+ \fi
+ \pgfplots@group@current@column=1
+ \else
+ \advance\pgfplots@group@current@column by1
+ \fi
+}
+
+\def\pgfplots@group@get@plot@name#1,#2\in#3{%
+ \edef#3{c#1r#2}%
+}
+
+
+%
+% Setting up all possible styles in current plot
+% I.e. Setting:
+% /pgfplots/group/plot c1r1/.style=
+% /pgfplots/group/plot c2r1/.style=
+% ...
+% /pgfplots/group/plot c<columns>r<rows>/.style=
+%
+\def\pgfplots@group@individual@setup{%
+ \gdef\pgfplots@glob@TMPa{}
+ \foreach \pgfplots@column in {1,...,\pgfplots@group@columns} {%
+ \foreach \pgfplots@row in {1,...,\pgfplots@group@rows} {%
+ \expandafter\xdef\expandafter\pgfplots@glob@TMPa\expandafter{%
+ \pgfplots@glob@TMPa,/pgfplots/group/plot c\pgfplots@column r\pgfplots@row/.style=}%
+ }%
+ }%
+ \expandafter\pgfkeys\expandafter{\pgfplots@glob@TMPa}%
+}
+
+
+
+%
+% Implementation of the environment {groupplots}
+\def\pgfplots@environment@groupplot{%
+ \pgfutil@ifnextchar[{\pgfplots@@environment@groupplot}{\pgfplots@@environment@groupplot[\pgfutil@empty]}%
+}
+
+\def\endpgfplots@environment@groupplot{%
+ \endpgfplots@environment@opt
+ %
+ % transport some items beyond this \endgroup:
+ \pgf@remember@layerlist@globally
+ \aftergroup\pgf@restore@layerlist@from@global
+ \endgroup
+ %
+ % ... and transport them beyond the next \endgroup as well (LaTeX
+ % introduces one for \end{groupplot}):
+ \aftergroup\pgf@restore@layerlist@from@global
+ \aftergroup\pgfplots@cell@picture@remembered
+}
+
+\def\pgfplots@@environment@groupplot[#1]{%
+ \begingroup%
+ % Only find the keys column and row
+ % the following things appear to be complete... ?
+ \pgfkeysinstallkeyfilterhandler{/pgf/key filter handlers/append filtered to}{\pgfplots@group@rmopts}%
+ \let\pgfplots@group@rmopts=\pgfutil@empty
+ \pgfkeysinstallkeyfilter{/pgf/key filters/equals}{/pgfplots/group style}%
+ \pgfkeysinstallkeyfilter{/pgf/key filters/is descendant of}{/pgfplots/group}%
+ \pgfqkeysfiltered{/pgfplots}{#1}%
+ \edef\pgfplots@loc@TMPa{%
+ \noexpand\pgfkeys{/pgfplots/group/.cd,\pgfplots@group@style}%
+ }\pgfplots@loc@TMPa
+ %
+ \let\pgfplots@set@options@sanitizemode@old=\pgfplots@set@options@sanitizemode
+ \let\pgfplots@set@options@sanitize@old=\pgfplots@set@options@sanitize
+ \let\pgfplots@set@options@sanitize=\relax
+ \let\pgfplots@set@options@sanitizemode=\relax
+ \expandafter\pgfplots@set@options\expandafter{\pgfplots@group@rmopts}%
+ \let\pgfplots@set@options@sanitize=\pgfplots@set@options@sanitize@old
+ \let\pgfplots@set@options@sanitizemode=\pgfplots@set@options@sanitizemode@old
+ %
+ \pgfplots@group@individual@setup
+ \pgfplots@group@determine@ticklabels
+ \pgfplots@group@determine@labels
+ \pgfplots@group@current@plot=0 %
+ \pgfplots@group@current@row=1 %
+ \pgfplots@group@current@column=0 %
+ \begingroup
+ \c@pgf@counta=\pgfplots@group@rows\relax
+ \multiply \c@pgf@counta by\pgfplots@group@columns\relax
+ \edef\pgfmathresult{\the\c@pgf@counta}%
+ \pgfmath@smuggleone\pgfmathresult
+ \endgroup
+ \edef\pgfplots@group@totalplots{\pgfmathresult}%
+ %DEBUG: \message{TEST: \pgfplots@group@totalplots, rows=\pgfplots@group@rows, columns=\pgfplots@group@columns}%
+}
+
+% Assigns \pgfmathresult as #1-1 (in integer arithmetics)
+%
+% #1 an integer (a register or something which expands to an integer).
+\def\pgfplotsgroupplotsmath@decrease#1{%
+ \begingroup
+ \c@pgf@counta=#1\relax
+ \advance\c@pgf@counta by-1
+ \edef\pgfmathresult{\the\c@pgf@counta}%
+ \pgfmath@smuggleone\pgfmathresult
+ \endgroup
+}
+
+\tikzaddtikzonlycommandshortcutlet\groupplot\pgfplots@environment@groupplot
+\tikzaddtikzonlycommandshortcutlet\endgroupplot\endpgfplots@environment@groupplot
+
+\endinput