使用 pgfplot 繪製表中的幾列

Question

我正在嘗試使用 pgfplot 從表中繪製三列。

我一直在環顧四周，但找到的解決方案似乎不適合我。到目前為止，我做什麼並不重要，我只得到一行帶有勾號的行（我不想要）。

我查過（僅舉幾個地方）

• 使用多列作為繪圖的 y 軸 pgfplots
• 使用 PGFPLOTS 繪製表格中某一列的多個值

這是當前的程式碼：

\begin{figure}
  \centering
  \begin{tikzpicture}
  \begin{axis}[
  title=My first gaph,
  xlabel={$\text{Ár}$},
  ylabel={$\text{Skerðingar}$},
  ]
  \addplot+[] table {test.txt};
  \foreach \column in {1,...,3}{
  \addplot+[] table {test.txt};}
  \end{axis}
  \end{tikzpicture}
  \end{figure}

我也嘗試過

\begin{figure}
  \centering
  \begin{tikzpicture}
  \begin{axis}[
  title=My first gaph,
  xlabel={$\text{Ár}$},
  ylabel={$\text{Skerðingar}$},
  ]
  \addplot+[blue] table[meta=Steady] {test.txt};
  \addplot+[red] table[meta=Incr] {test.txt};
  \end{axis}
  \end{tikzpicture}
  \end{figure}

目前我只能拍出這張圖

但我正在嘗試做一些類似的東西

我相當確定我能夠修復年份並為每行添加相應的圖例。我確實將每列的名稱更改為英文，以防止我的語言中的特殊字元出現錯誤。

最後，我想繪製表格

Year    Steady  Incr    Random
2021    280.00  280.00  280.00
2022    289.56  284.20  333.32
2023    293.72  288.46  200.60
2024    296.16  292.79  103.47
2025    297.63  297.18  402.42
2026    298.64  301.64  387.03
2027    300.05  306.16  457.79
2028    301.38  310.76  307.06
2029    303.17  315.42  146.29
2030    305.04  320.15  245.75
2031    306.32  324.95  279.80
2032    307.75  329.83  142.60
2033    309.13  334.77  304.65
2034    310.46  339.79  267.77
2035    311.72  344.89  160.39
2036    312.95  350.06  513.19
2037    314.13  355.32  261.99
2038    315.25  360.65  253.23
2039    316.35  366.06  505.29
2040    317.86  371.55  527.03
2041    318.95  377.12  367.09
2042    320.04  382.78  137.13
2043    321.14  388.52  225.11
2044    322.28  394.35  233.99
2045    323.46  400.26  186.64
2046    324.67  406.26  531.08
2047    325.91  412.36  418.04
2048    327.17  418.54  475.53
2049    328.44  424.82  318.89
2050    329.74  431.19  495.73
2051    331.11  437.66  306.65
2052    332.48  444.23  265.86
2053    333.84  450.89  253.02
2054    335.18  457.65  164.01
2055    336.52  464.52  263.51
2056    337.83  471.49  453.54
2057    339.12  478.56  478.29
2058    340.38  485.74  391.17
2059    341.60  493.02  429.69
2060    342.79  500.42  487.88
2061    345.10  507.93  373.95
2062    346.45  515.54  540.48
2063    347.80  523.28  217.49
2064    349.14  531.13  167.71
2065    350.49  539.09  373.09
2066    351.84  547.18  353.81
2067    353.18  555.39  354.63
2068    354.53  563.72  185.00
2069    355.88  572.17  426.76
2070    357.22  580.76  206.34

我相當確定，如果我掌握了 pgfplot 的竅門，我的論文會進展得更快（昨天剛了解到它，所以請耐心等待）。文件對我幫助不大，但也許我誤解了它。

這是一篇論文，所以有很多包，但這裡是：

\documentclass[a4paper,12pt,twoside,BCOR=10mm]{scrbook}

% Packages
\usepackage[utf8]{inputenc}
\usepackage[icelandic]{babel}
\usepackage{t1enc}
\usepackage{graphicx}
\usepackage[intoc]{nomencl}
\usepackage{enumerate,color}
\usepackage{url}
\usepackage[pdfborder={0 0 0}]{hyperref}
\BeforeTOCHead[toc]{\cleardoublepage\pdfbookmark{\contentsname}{toc}} % Add Table of Contents to PDF "bookmark" table of contents
\usepackage{appendix}
\usepackage{eso-pic}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{longtable}
\usepackage[sf,normalsize]{subfigure}
\usepackage[format=plain,labelformat=simple,labelsep=colon]{caption}
\usepackage{placeins}
\usepackage{tabularx}
\usepackage{multirow}
\usepackage{subfigure}
% Packages used for title page layout
\usepackage{xcolor}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usepgfplotslibrary{external}

% Blue color according to HÍ corporate design
\convertcolorspec{RGB}{16,9,159}{rgb}\tmphiblue
\definecolor{hiblue}{rgb}\tmphiblue


\setlength{\parskip}{\baselineskip}
\setlength{\parindent}{0cm}
\raggedbottom

\setkomafont{captionlabel}{\itshape}
\setkomafont{caption}{\itshape}
\setkomafont{section}{\FloatBarrier\Large}
\setcapwidth{\textwidth}
%\setcapwidth[l]{\textwidth} % The original template had the [l] which leads to a warning that it gets ignored, so to reduce warnings, removed it.
\setcapindent{1em}


\usepackage{lmodern} % Use Latin Modern (instead of the default Computer Modern that is rendered using a bitmap font).
\usepackage{fixcmex} % To fix that Latin Modern large symbol math fonts has by default only one size: https://tex.stackexchange.com/a/621536
% Times new roman font instead of the standard LaTeX fonts: has not been test -- try this on your own risk
\usepackage[T1]{fontenc}
\usepackage{mathptmx}


%%%%%%%%%%%%%%%%% Configurations (Useful defaults, but OK to change %%%%%%%%%%%%%%%%%%%
\graphicspath{{figs/}} % Figures in directory figs

% Bibliography

% \usepackage[authoryear]{natbib} % Uncoment if you want to used NatBib instead of BibLaTeX (and comment the bitlatex line below)

\usepackage[backend=biber, style=authoryear]{biblatex}  % BibLaTeX used for references. 
\usepackage{csquotes} % BibLaTex wants to have context sensitive quotes
\addbibresource{references.bib} %  Name of *.bib file containing references

Answer 1

\documentclass[{article}

\usepackage[dvipsnames]{xcolor}

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\begin{document}

\begin{tikzpicture}
\pgfkeys{/pgf/number format/.cd,1000 sep={ }} % to remove the thousand separator 
\begin{axis}[
title=Title,
xlabel={x label},
ylabel={y label},
legend columns=-1, % to set one line legend
legend style={at={(0.5,-0.3)},anchor=center}, 
ymajorgrids
 ]
 \addplot[blue, thick] table [x=Year, y=Steady, col sep=space] {data.txt};
 \addplot[red, thick] table [x=Year, y=Incr, col sep=space] {data.txt};
 \addplot[Goldenrod, thick] table [x=Year, y=Random, col sep=space] {data.txt};
 \legend{Steady, Incr, Random}
 \end{axis}
\end{tikzpicture}

\end{document}

我使用了比黃色更好的顏色“Goldenrod”，如果你想使用它，請記住使用前面的xcolor選項加載包，否則你會出錯。[dvipsnames]pgfplots