我已将讲义中的三幅图xelatex脚本和三幅图 jpg 添加到其中。问题是我无法以addplot3分数形式显示标记。图 2 和图 3 中的 2D 图也是如此。如果您看到 3D 图 1，我想在一个位置显示 x 和 y 的原点，我无法调整视图。
最后，我无法在 xz 平面和 yz 平面上显示文本。我知道它的视图调整，但无法做到。
如果有人能在这方面帮助我，请告知。数据文件很简单，不包含在代码中，但可以从图表中理解。
\documentclass[tikz, border=2mm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.5}
\usetikzlibrary{3d}
\usepackage{amsmath}
\usepackage{filecontents}
\begin{filecontents}{s.dat}
x y m
1 1 0.33
2 1 0.33
1 2 0.33
\end{filecontents}
\begin{filecontents}{st.dat}
x y m
0 1 0.67
0 2 0.33
\end{filecontents}
\begin{filecontents}{sth.dat}
x y m
1 4 0.67
2 4 0.33
\end{filecontents}
\begin{filecontents}{data.dat}
n xn
1 0.67
2 0.33
\end{filecontents}
\begin{filecontents}{Second.dat}
n xn
1 0.67
2 0.33
\end{filecontents}
\begin{document}
\begin{tikzpicture}
\begin{axis}
[ scale = 2,
view={45}{45},
ticklabel style = {font=\large},
xlabel={\huge $X$},
ylabel={\huge $Y$},
zlabel={\huge $p_{XY}(x,y)$},
zlabel style={rotate=0},
xmin=0,xmax=5,
xtick={0,1,2,3,4},
ymin=0,ymax=4,
ytick={0,1,2,3,4},
zmin=0, zmax=0.9,
ztick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9},
axis background/.style={fill=white},
xmajorgrids=true,
ymajorgrids=true,
zmajorgrids=true,
grid style=dashed,
visualization depends on={value \thisrow{m} \as \labela},
]
\addplot3 [ycomb,scatter, mark = text,
mark options={text mark=\labela,
text mark as node=true,
text mark style={scale=1.25, yshift=13pt}
}] table {s.dat};
\addplot3 [ycomb,scatter,color=red, mark = text,
mark options={text mark={\labela},
text mark as node=true,
text mark style={scale=1.25, yshift=13pt}
}] table {st.dat};
\addplot3 [ycomb,scatter,color=orange, mark = text,
mark options={text mark={\labela},
text mark as node=true,
text mark style={scale=1.25, yshift=13pt}
}] table {sth.dat};
\end{axis}
\end{tikzpicture}
\newpage
\begin{tikzpicture}
\begin{axis}
[%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
scale=2,
ticklabel style = {font=\huge, color=blue},
axis x line=middle,
axis y line=middle,
every axis x label={at={(current axis.right of origin)},anchor=north west},
every axis y label={at={(current axis.above origin)},anchor= north west},
every axis plot post/.style={mark options={fill=black},font=\huge},
xmin=0,
xmax=4,
xtick={0, 1, 2, 3},
xticklabels={$0$, $1$, $2$, $3$},
% extra x tick style={ xticklabel style={yshift=0.5ex, anchor=south} },
xlabel={\huge $\boldsymbol{x}$},
ylabel={\huge $\boldsymbol{p_X(x)}$},
ytick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7},
ymin=0,
ymax=0.7,
visualization depends on={value \thisrow{xn} \as \labela},
]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addplot+[ycomb,black,very thick,
mark=text,
text mark=\labela,
text mark as node,
text mark style={
xshift=-9pt,
yshift=20pt,
font=\huge,
}] table [x={n}, y={xn}] {data.dat};
\end{axis}
\end{tikzpicture}
\begin{tikzpicture}
\begin{axis}
[%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
scale=2,
ticklabel style = {font=\huge},
axis x line=middle,
axis y line=middle,
every axis x label={at={(current axis.right of origin)},anchor=north west},
every axis y label={at={(current axis.above origin)},anchor= north west},
every axis plot post/.style={mark options={fill=black}},
xmin=0,
xmax=4,
xtick={0, 1, 2, 3},
xticklabels={$0$, $1$, $2$, $3$},
% extra x tick style={ xticklabel style={yshift=0.5ex, anchor=south} },
xlabel={\huge $\boldsymbol{y}$},
ylabel={\huge $\boldsymbol{p_Y(y)}$},
ytick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7},
ymin=0,
ymax=0.7,
visualization depends on={value \thisrow{xn} \as \labela},
]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addplot+[ycomb,black, very thick, mark=text,
text mark=\labela,
text mark as node,
text mark style={
xshift=-9pt,
yshift=20pt,
font=\huge}] table [x={n}, y={xn}] {Second.dat};
\end{axis}
\end{tikzpicture}
\end{document}
\documentclass[tikz,border=3.14mm]{standalone}
\usepackage{tikz-3dplot}
\begin{document}
\tdplotsetmaincoords{60}{110}
\begin{tikzpicture}[tdplot_main_coords,>=stealth,declare function={%
pfft(\x)=pi+0.3*sin(deg(\x));}]
\draw[->] (0,0,0) coordinate (O) -- (5,0,0) coordinate(X) node[pos=1.1]{$x$};
\draw[->] (O) -- (0,5,0) node[pos=1.1]{$y$};
\draw[->] (O) -- (0,0,5) node[pos=1.1]{$z$};
\draw[thick] plot[variable=\x,domain=0.8*pi:1.1*pi,smooth] (2.2,\x,{pfft(2*\x)})
coordinate (T1)--
plot[variable=\x,domain=1.1*pi:0.8*pi,smooth] (0.8,\x,{pfft(2*\x)}) coordinate
(T3)-- cycle;
\draw (2.2,0.8*pi,0) coordinate (B4)-- (2.2,1.1*pi,0) coordinate (B1)
-- (0.8,1.1*pi,0) coordinate (B2) -- (0.8,0.8*pi,0) coordinate (B3) -- cycle;
\path (2.2,0.8*pi,{pfft(2*0.8*pi)}) coordinate (T4)
(0.8,1.1*pi,{pfft(2*1.1*pi)}) coordinate (T2);
\foreach \X in {1,...,4}
{\draw (B\X) -- (T\X);}
\path[opacity=0.3,left color=blue,right color=blue,middle color=blue!20,shading
angle=72]
plot[variable=\x,domain=0:1.1*pi,smooth] (3,\x,{pfft(2*\x)}) --
plot[variable=\x,domain=1.1*pi:0,smooth] (0,\x,{pfft(2*\x)}) -- cycle;
\path[opacity=0.3,left color=blue,right color=blue,middle color=blue!20,shading
angle=72]
plot[variable=\x,domain=1.1*pi:2.2*pi,smooth] (3,\x,{pfft(2*\x)}) --
plot[variable=\x,domain=2.2*pi:1.1*pi,smooth] (0,\x,{pfft(2*\x)}) -- cycle;
\draw plot[variable=\x,domain=0:2.2*pi,smooth] (3,\x,{pfft(2*\x)}) --
plot[variable=\x,domain=2.2*pi:0,smooth] (0,\x,{pfft(2*\x)}) -- cycle;
\end{tikzpicture}
\end{document}
\documentclass[tikz,border=3mm]{standalone}
\usetikzlibrary{patterns}
\usepackage{tikz-3dplot}
\begin{document}
\tdplotsetmaincoords{70}{110}
\begin{tikzpicture}[scale=3, tdplot_main_coords,line cap=round,>=stealth,
declare function={f(\x,\y)=3+0.5*sin(30*\x)*cos(30*\y);}]
\draw[->] (0,0,0) coordinate (O) -- (6,0,0) node[pos=1.05]{$x$};
\node at (0.05,-0.15,0) [left,rotate=45] {$x+\delta_1 x$};
\node at (1,-0.15,0) [left,rotate=45] {$\delta_1$};
\node at (1.5,-0.15,0) [left,rotate=45] {$x$};
\draw[->] (O) -- (0,6,0) node[pos=1.05]{$y$};
\node at (-0.25,2,0) [left,rotate=0] {$y$};
\node at (-0.25,3.3,0) [left,rotate=-5] {$y+\delta_2 y$};
\node at (-0.25,2.5,0) [left,rotate=0] {$\delta_2$};
\draw[->] (O) -- (0,0,5) node[pos=1.05]{$z$};
\draw [pattern=vertical lines, pattern color=gray] (1,2,0) -- (2,2,0) -- (2,3,0) -- (1,3,0) -- cycle;
\foreach \X in {1,2} {\foreach \Y in {2,3}
{\draw[dashed] (\X,\Y,0) -- (\X,\Y,{f(\X,\Y)});}}
\foreach \X in {1,2} {
\draw[dashed] (\X,2,0) -- (\X,0,0);}
\foreach \Y in {2,3} {
\draw[dashed] (1,\Y,0) -- (0,\Y,0);}
\foreach \X in {0,...,4}
{\draw plot[variable=\x,domain=0:5,smooth] (\X,\x,{f(\X,\x)});
}
\foreach \Y in {0,...,5}
{\draw plot[variable=\x,domain=0:4,smooth] (\x,\Y,{f(\x,\Y)});
}
\draw[gray,thick,pattern=vertical lines, pattern color=gray] plot[variable=\x,domain=1:2,smooth] (\x,2,{f(\x,2)})
-- plot[variable=\y,domain=2:3] (2,\y,{f(2,\y)})
-- plot[variable=\x,domain=2:1] (\x,3,{f(\x,3)})
-- plot[variable=\y,domain=3:2] (1,\y,{f(1,\y)})
-- cycle;
\draw (4,0,{f(4,0)}) -- (4,0,0);
\draw (0,5,{f(0,5)}) -- (0,5,0);
\draw (4,5,{f(4,5)}) -- (4,5,0);
\draw (0,5,0) -- (4,5,0);
\draw (4,0,0) -- (4,5,0);
\draw (3,5,{f(3,5)}) -- (3,5,0);
\draw (2,5,{f(2,5)}) -- (2,5,0);
\draw (1,5,{f(1,5)}) -- (1,5,0);
\draw [<-] (0.75,1,{f(0.75,1)}) -- (-3,1,3) node [pos=1.125] {$f_{XY}(x,y)$};
\end{tikzpicture}
\end{document}
答案1
感谢您提供可编译的代码！至于“将标记作为分数”问题，您可以使用
\pgfkeys{/pgf/number format/frac,/pgf/number format/frac denom=3}
连同\pgfmathprintnumber。为了您的方便，我将其做成了宏。
\documentclass[tikz, border=2mm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.5}
\usetikzlibrary{3d}
\usepackage{amsmath}
\usepackage{filecontents}
\begin{filecontents}{s.dat}
x y m
1 1 0.33
2 1 0.33
1 2 0.33
\end{filecontents}
\begin{filecontents}{st.dat}
x y m
0 1 0.67
0 2 0.33
\end{filecontents}
\begin{filecontents}{sth.dat}
x y m
1 4 0.67
2 4 0.33
\end{filecontents}
\begin{filecontents}{data.dat}
n xn
1 0.67
2 0.33
\end{filecontents}
\begin{filecontents}{Second.dat}
n xn
1 0.67
2 0.33
\end{filecontents}
\newcommand\PrintFrac[2][3]{%
\pgfkeys{/pgf/number format/frac,/pgf/number format/frac denom=#1}%
\pgfmathprintnumber{#2}}
\begin{document}
\begin{tikzpicture}
\begin{axis}
[ scale = 2,
view={45}{45},
ticklabel style = {font=\large},
xlabel={\huge $X$},
ylabel={\huge $Y$},
zlabel={\huge $p_{XY}(x,y)$},
zlabel style={rotate=0},
xmin=0,xmax=5,
xtick={0,1,2,3,4},
ymin=0,ymax=4,
ytick={0,1,2,3,4},
zmin=0, zmax=0.9,
ztick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9},
axis background/.style={fill=white},
xmajorgrids=true,
ymajorgrids=true,
zmajorgrids=true,
grid style=dashed,
visualization depends on={value \thisrow{m} \as \labela},
]
\addplot3 [ycomb,scatter, mark = text,
mark options={text mark=\PrintFrac{\labela},
text mark as node=true,
text mark style={scale=1.25, anchor=south}
}] table {s.dat};
\addplot3 [ycomb,scatter,color=red, mark = text,
mark options={text mark=\PrintFrac{\labela},
text mark as node=true,
text mark style={scale=1.25, anchor=south}
}] table {st.dat};
\addplot3 [ycomb,scatter,color=orange, mark = text,
mark options={text mark=\PrintFrac{\labela},
text mark as node=true,
text mark style={scale=1.25, anchor=south}
}] table {sth.dat};
\end{axis}
\end{tikzpicture}
\newpage
\begin{tikzpicture}
\begin{axis}
[%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
scale=2,
ticklabel style = {font=\huge, color=blue},
axis x line=middle,
axis y line=middle,
every axis x label={at={(current axis.right of origin)},anchor=north west},
every axis y label={at={(current axis.above origin)},anchor= north west},
every axis plot post/.style={mark options={fill=black},font=\huge},
xmin=0,
xmax=4,
xtick={0, 1, 2, 3},
xticklabels={$0$, $1$, $2$, $3$},
% extra x tick style={ xticklabel style={yshift=0.5ex, anchor=south} },
xlabel={\huge $\boldsymbol{x}$},
ylabel={\huge $\boldsymbol{p_X(x)}$},
ytick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7},
ymin=0,
ymax=0.7,
visualization depends on={value \thisrow{xn} \as \labela},
]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addplot+[ycomb,black,very thick,
mark=text,
text mark=\PrintFrac{\labela},
text mark as node,
text mark style={anchor=south,
font=\huge,
}] table [x={n}, y={xn}] {data.dat};
\end{axis}
\end{tikzpicture}
\begin{tikzpicture}
\begin{axis}
[%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
scale=2,
ticklabel style = {font=\huge},
axis x line=middle,
axis y line=middle,
every axis x label={at={(current axis.right of origin)},anchor=north west},
every axis y label={at={(current axis.above origin)},anchor= north west},
every axis plot post/.style={mark options={fill=black}},
xmin=0,
xmax=4,
xtick={0, 1, 2, 3},
xticklabels={$0$, $1$, $2$, $3$},
% extra x tick style={ xticklabel style={yshift=0.5ex, anchor=south} },
xlabel={\huge $\boldsymbol{y}$},
ylabel={\huge $\boldsymbol{p_Y(y)}$},
ytick={0,0.1,0.2,0.3,0.4,0.5,0.6,0.7},
ymin=0,
ymax=0.7,
visualization depends on={value \thisrow{xn} \as \labela},
]%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\addplot+[ycomb,black, very thick, mark=text,
text mark=\PrintFrac{\labela},
text mark as node,
text mark style={anchor=south,
font=\huge}] table [x={n}, y={xn}] {Second.dat};
\end{axis}
\end{tikzpicture}
\end{document}
此外，您可以只调整这些节点的锚点，而不必进行所有硬编码的移位，请参见上面的代码。
但是，我不明白问题的第二部分。你指的是哪些文本？