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如何绘制以日期为横坐标的曲线？

tag-icon • tag-icon tikz-pgf tikz-datavisualization csvsimple-13
如何绘制以日期为横坐标的曲线？

我正在尝试使用库 {datavisualization} 来跟踪取决于当前日期的数据的演变。

我不知道如何获取横坐标上的日期。

以下示例中的日期采用法语格式 dd/mm/yyyy

% !TeX program =Xelatex+shell-escape
% !TeX encoding = utf8
%  !TeX spellcheck = fr 

\documentclass{article}
\usepackage{filecontents}
\begin{filecontents*}[overwrite]{plaquette.csv}
date,plaquettes
30/10/2023,1200000
02/10/2023,1229000
06/11/2023,980000
09/11/2023,570000
13/11/2023,308000
16/11/2023,259000
20/11/2023,117000
23/11/2023,65000
27/11/2023,21000
30/11/2023,39000
04/12/2023,590000
07/12/2023,1034000
11/12/2023,1960000
14/12/2023,1339000
18/12/2023,990000
02/01/2024,800000
06/01/2024,520000
12/01/2024,350000
\end{filecontents*}

\usepackage{tikz}
\usetikzlibrary {datavisualization}
\usepackage{csvsimple-l3}

\begin{document}

\csvautotabular{plaquette.csv}

\end{document}

答案1

这里有两个版本，一个是read from file，另一个来自data部分，结果相同。

结果

从文件读取

\documentclass[10pt,border=3mm,tikz]{standalone}
\usetikzlibrary{datavisualization}  %

% ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\newcounter{NX}

\makeatletter
    % ~~~ declaring the dateX-format needed for the visualizer ~~~~~~~~~~~~~~~~~~
    \pgfdeclaredataformat{dateX}%                   <<<
        {}%                                         no catcode changes
        {\xdef\label@list{}}%                       initialise a global label list
        {#1,#2}%                                    data format as used below
        {%                                          which format?
            \pgfmathaddtocounter{NX}{1}%            advance counter
            \pgfkeyssetvalue{/data point/x}{\theNX}%store counters result as x-data 
            \pgfkeyssetvalue{/data point/y}{#2}%    the y-data (Value)          
            \xdef\label@list{\label@list,"#1"}%     append label to list
            \pgfdatapoint%                          save assigned x and y
        }%
        {}{}

    % ~~~ typesetting the x-axis: putting labels instead of 1,2,3, ... ~~~~~~~~
    \def\ticksfromlabellist#1{%
        \pgfmathparse{{\label@list}[#1]}%           it's 30/10/2023 for the first tick etc.
        \pgfmathresult
    }    
\makeatother

\def\dvbb{data visualization bounding box}  % shortcut to this box

% ~~~ data file ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\begin{filecontents*}[overwrite]{plaquette.csv}
    %date,plaquettes
    30/10/2023,1200000
    02/10/2023,1229000
    06/11/2023,980000
    09/11/2023,570000
    13/11/2023,308000
    16/11/2023,259000
    20/11/2023,117000
    23/11/2023,65000
    27/11/2023,21000
    30/11/2023,39000
    04/12/2023,590000
    07/12/2023,1034000
    11/12/2023,1960000
    14/12/2023,1339000
    18/12/2023,990000
    02/01/2024,800000
    06/01/2024,520000
    12/01/2024,350000
\end{filecontents*}

% ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\begin{document}
 \begin{tikzpicture}
    % ~~~ let's plot some data ~~~~~~~~~~~~~~~~~~~~
    \datavisualization
    [
        scientific axes=clean,
        visualize as line,
        % ~~~ axes ~~~~~~~~~~~~~~~~~~~~~~~~
        x axis={
            label=Date,         % name it
            ticks={ 
                step=2,         % or use step=1 to show all labels
                tick typesetter/.code=\ticksfromlabellist{##1}, % typesetting labels
                node style={rotate=90,anchor=east,teal},        % rotating etc. 
            }, 
            min value=0,        % if you like
        },  
        y axis={
            label=Plaquettes,   % name it
            min value = 0, max value=2e6
        },
        % ~~~ grids ~~~~~~~~~~~~~~~~~~~~~~~
        all axes=grid,      
    ] data [format=dateX, read from file=plaquette.csv]
    info{
        % ~~~ Title ~~~~~~~~~~~
        \node[purple,anchor=south] at (\dvbb.north) {Example};
    };
 \end{tikzpicture}
\end{document}

数据部分

代码相同，但数据已移动。

\documentclass[10pt,border=3mm,tikz]{standalone}
\usetikzlibrary{datavisualization}  %

% ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\newcounter{NX}

\makeatletter
    % ~~~ declaring the dateX-format needed for the visualizer ~~~~~~~~~~~~~~~~~~
    \pgfdeclaredataformat{dateX}%                   <<<
        {}%                                         no catcode changes
        {\xdef\label@list{}}%                       initialise a global label list
        {#1,#2}%                                    data format as used below
        {%                                          which format?
            \pgfmathaddtocounter{NX}{1}%            advance counter
            \pgfkeyssetvalue{/data point/x}{\theNX}%store counters result as x-data 
            \pgfkeyssetvalue{/data point/y}{#2}%    the y-data (Value)          
            \xdef\label@list{\label@list,"#1"}%     append label to list
            \pgfdatapoint%                          save assigned x and y
        }%
        {}{}

    % ~~~ typesetting the x-axis: putting labels instead of 1,2,3, ... ~~~~~~~~
    \def\ticksfromlabellist#1{%
        \pgfmathparse{{\label@list}[#1]}%           it's 30/10/2023 for the first tick etc.
        \pgfmathresult
    }    
\makeatother

\def\dvbb{data visualization bounding box}  % shortcut to this box

% ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\begin{document}
 \begin{tikzpicture}
    % ~~~ let's plot some data ~~~~~~~~~~~~~~~~~~~~
    \datavisualization
    [
        scientific axes=clean,
        visualize as line,
        % ~~~ axes ~~~~~~~~~~~~~~~~~~~~~~~~
        x axis={
            label=Date,         % name it
            ticks={ 
                step=2,         % or use step=1 to show all labels
                tick typesetter/.code=\ticksfromlabellist{##1}, % typesetting labels
                node style={rotate=90,anchor=east,teal},        % rotating etc. 
            }, 
            min value=0,        % if you like
        },  
        y axis={
            label=Plaquettes,   % name it
            min value = 0, max value=2e6
        },
        % ~~~ grids ~~~~~~~~~~~~~~~~~~~~~~~
        all axes=grid,      
    ] data [format=dateX] {     % declared above, to meet this data format
%       date,plaquettes         % skipping header
        30/10/2023,1200000
        02/10/2023,1229000
        06/11/2023,980000
        09/11/2023,570000
        13/11/2023,308000
        16/11/2023,259000
        20/11/2023,117000
        23/11/2023,65000
        27/11/2023,21000
        30/11/2023,39000
        04/12/2023,590000
        07/12/2023,1034000
        11/12/2023,1960000
        14/12/2023,1339000
        18/12/2023,990000
        02/01/2024,800000
        06/01/2024,520000
        12/01/2024,350000
    }
    info{
        % ~~~ Title ~~~~~~~~~~~
        \node[purple,anchor=south] at (\dvbb.north) {Example};
    };
 \end{tikzpicture}
\end{document}

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