Como corrigir o erro de plotagem "Aviso do pacote pgfplots: o intervalo do eixo para o eixo y está aproximadamente vazio; ampliando-o (é [0.0:0.0])"

Question

Eu tenho um arquivo .csv, por exemplo

x,y
0.0,0.0
0.01,0.00010774053043701307
0.02,0.00010774053043701307
0.03,0.00010774053043701307
0.04,0.00010774053043701307
0.05,0.00010774053043701307
0.06,0.00010774053043701307
0.07,0.00014664493119403256
0.08,0.0001915333704067139
0.09,0.00024240531068915437
0.1,0.0002992601430234413
0.11,0.0003620971867669429
0.12,0.00043091568966045687
0.13,0.0005057148278372159
0.14,0.0005864937058327506
0.15,0.0006732513565956097
0.16,0.0007659867414989382
0.17,0.000864698750352909
0.18,0.0009693862014180162
0.19,0.001080047841419221
0.2,0.0011966823455609558
0.21,0.0013192883175429826
0.22,0.0014478642895771137
0.23,0.0015824087224047762
0.24,0.0017229200053154453
0.25,0.0018693964561659246
0.26,0.0020218363214004856
0.27,0.0021802377760718568
0.28,0.002344598923863077
0.29,0.002514917797110189
0.3,0.002691192356825808
0.31,0.002873420492723518
0.32,0.003061600023243144
0.33,0.0032557286955768663
0.34,0.0034558041856961887
0.35000000000000003,0.003661824098379764
0.36,0.003873785967242066
0.37,0.004091687254762918
0.38,0.0043155253523178665
0.39,0.004545297580209419
0.4,0.004781001187699114
0.41000000000000003,0.005022633353040461
0.42,0.00527019118351271
0.43,0.005523671715455502
0.44,0.005783071914304324
0.45,0.006048388674626854
0.46,0.006319618820160134
0.47000000000000003,0.00659675910384859
0.48,0.006879806207882916
0.49,0.007168756743739781
0.5,0.007463607252222396
0.51,0.00776435420350194
0.52,0.008070993997159806
0.53,0.008383522962230694
0.54,0.008701937357246585
0.55,0.009026233370281507
0.56,0.009356407118997188
0.5700000000000001,0.009692454650689514
0.58,0.010034371942335868
0.59,0.010382154900643294
0.6,0.010735799362097478
0.61,0.011095301093012606
0.62,0.011460655789582054
0.63,0.011831859077929897
0.64,0.012208906514163285
0.65,0.012591793584425626
0.66,0.012980515704950653
0.67,0.013375068222117262
0.68,0.01377544641250525
0.6900000000000001,0.014181645482951866
0.7000000000000001,0.014593660570609158
0.71,0.015011486743002225
0.72,0.015435118998088259
0.73,0.01586455226431641
0.74,0.016299781400688516
0.75,0.016740801196820643
0.76,0.01718760637300547
0.77,0.0176401915802755
0.78,0.01809855140046705
0.79,0.018562680346285172
0.8,0.01903257286136933
0.81,0.019508223320359907
0.8200000000000001,0.01998962602896554
0.8300000000000001,0.020476775224031313
0.84,0.020969665073607736
0.85,0.02146828967702059
0.86,0.021972643064941514
0.87,0.022482719199459513
0.88,0.022998511974153237
0.89,0.023520015214164046
0.9,0.024047222676270005
0.91,0.024580128048960533
0.92,0.025118724952512047
0.93,0.025663006939064294
0.9400000000000001,0.026212967492697525
0.9500000000000001,0.026768600029510575
0.96,0.027329897897699563
0.97,0.02789685437763767
0.98,0.028469462681955465
0.99,0.029047715955622184
1.0,0.029631607276027882
1.01,0.029631607276027882
1.02,0.03022111353087026
1.03,0.03081619467761404
1.04,0.03141681742042154
.
.
.
4.900000000000003,0.7831223904577598
4.910000000000004,0.7971864038672304
4.9200000000000035,0.8116110293974611
4.930000000000003,0.8264066223751712
4.940000000000003,0.8415838659569086
4.950000000000004,0.8571537823360351
4.9600000000000035,0.8731277443569787
4.970000000000003,0.8895174875523898
4.980000000000003,0.9063351226194677
4.990000000000004,0.9235931483523778
5.0000000000000036,0.9413044650483672
5.010000000000003,0.9594823884058965
5.020000000000003,0.9781406639338477
5.030000000000003,0.9972934818916466
5.040000000000004,1.016955492780938
5.050000000000003,1.037141823410302
5.060000000000003,1.0578680935553668
5.070000000000004,1.0791504332375965
5.080000000000004,1.1010055006459807
5.090000000000003,1.1234505007268458
5.100000000000003,1.1465032044680505
5.110000000000003,1.1701819689049002
5.120000000000004,1.1945057578762506
5.1300000000000034,1.2194941635604382
5.140000000000003,1.24516742882191
5.150000000000004,1.271546470400699
5.160000000000004,1.2986529029782243
5.1700000000000035,1.3265090641542931
5.180000000000003,1.355138040371629
5.190000000000003,1.3845636938257693
5.200000000000004,1.4148106903997526

e tento plotar dados deste arquivo

\documentclass[12pt,a4paper,report]{extarticle}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage{indentfirst}
\usepackage{listings}
\usepackage{color} %red, green, blue, yellow, cyan, magenta, black, white
\setlength\parindent{5ex}
\usepackage{tikz}
\usepackage{amsmath}
\usepackage{cool}
\usepackage{mathtools}
\usepackage{graphicx}
\graphicspath{ {./images/} }
\usepackage{setspace}
\usepackage{xspace}
\usepackage[left=3cm,right=1.5cm, top=1.5cm,bottom=1.5cm,bindingoffset=0cm, footskip=-40pt]{geometry}
\usepackage{caption}
\usepackage{algorithm}
\usepackage{algorithmicx}
\usepackage{algpseudocode}
\usepackage{tabularray} 
\usepackage{varwidth}
\usepackage{filecontents}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\pgfplotsset{compat=1.17}

\usepackage{tcolorbox}

\renewcommand{\labelenumii}{\arabic{enumi}.\arabic{enumii}}
\renewcommand{\labelenumiii}{\arabic{enumi}.\arabic{enumii}.\arabic{enumiii}}
\renewcommand{\labelenumiv}{\arabic{enumi}.\arabic{enumii}.\arabic{enumiii}.\arabic{enumiv}}
\setlength{\parindent}{1.25cm}
\linespread{1.15}
%\setlength{\parskip}{6pt}
\setcounter{page}{2}
\usepackage{enumitem}
\setlist{noitemsep}
\thispagestyle{empty}
\onehalfspacing

\newtheorem{definition}{Определение}[section]
\newtheorem{theorem}{Теорема}[section]

\pgfplotsset{width=10cm,compat=1.17}


\begin{document}
begin{figure}[h]
\centering
\begin{tikzpicture}
\pgfplotstableread[col sep=comma]{solution_a=5_n=1.csv}\datatable
\begin{axis}
[
xmin=0, xmax=5.12,
ymin=0, ymax=1.25,
    ytick distance = 5,
    grid = both,
    minor tick num = 1,
    major grid style = {lightgray},
    minor grid style = {lightgray!25},
    legend style={draw=none, fill=none},
    axis lines = left,
    xlabel = {$x$},
    ylabel = {$|\psi|^{2}_{n=3}(x)$},
    ylabel style={rotate=-90},
xtick={0, 1,2,3,4,5},
ytick={0, 0.2, 0.4;  0.6;  0.8;  1.0; 1.2},
x tick label style= {rotate=0,anchor=north}
]
\addplot [blue,thick] table [x=x, y=y] {\datatable};
\addlegendentry{$|\psi|^{2}_{n=3}(x)$}
\end{axis}
\end{tikzpicture}
\vspace{-0.3 cm}
\caption{Probability $|\psi|^{2}_{n=3}(x)$ при $a = -5$}\label{fig:myplot}
\end{figure}

\end{document}

E recebo o erro:

Package pgfplots Warning: Axis range for axis y is approximately empty; enlargi
ng it (it is [0.0:0.0]) on input line 464.

! Missing number, treated as zero.
<to be read again> 
                   i
l.464 \end{axis}

Tento usar o xpf, mas não funciona nesse caso. Como traçar este gráfico?

Answer 1

Com o seu código, não recebo o aviso (é um aviso, não um erro).

Sua mensagem de aviso contémAviso do pacote pgfplots: (...) na linha de entrada 464., mas não temos 464 (ou mais) linhas no seu código (apenas 80 linhas).

Se eu criar seu arquivo nomeado solution_a=5_n=1.csv(e suprimir as 3 linhas com apenas "." em vez de dois números separados por vírgula, veja o extrato abaixo)

1.03,0.03081619467761404
1.04,0.03141681742042154
.
.
.
4.900000000000003,0.7831223904577598
4.910000000000004,0.7971864038672304

ou se eu adicionar:

\begin{filecontents}{solution_a=5_n=1.csv}
x,y
0.0,0.0
0.01,0.00010774053043701307
(continue)
5.190000000000003,1.3845636938257693
5.200000000000004,1.4148106903997526
\end{filecontents}

no preâmbulo (observe que \usepackage{filecontents}não é mais necessário nas instalações modernas do LaTeX)

e corrijo alguns erros de digitação ( \begin{figure}[h]adicionei o que estava faltando \e substituí ytick={0, 0.2, 0.4; 0.6; 0.8; 1.0; 1.2},por ytick={0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2},conforme necessário ,em vez de ;),

o arquivo compila sem erros:

Então, com o código que você forneceu e as correções que eu disse, o aviso desapareceu (mas a plotagem não é o que você espera, pois faltam coordenadas de x = 1,04 a x = 4,90 e, portanto, a lacuna é vinculada a uma linha reta linha).

Há também outro aviso com o código que você forneceu:Aviso LaTeX: Opções globais não utilizadas: [relatório].É o reportdentro \documentclass[12pt,a4paper,report]{extarticle}. Não conheço essa opção global, qual pacote a utiliza.

Dê uma olhada tambémGráfico de barras pgfplots: única coordenada x simbólica resulta em "! Pacote pgfplots Aviso: o intervalo do eixo para o eixo x está aproximadamente vazio; ampliando-o".