pgfplots
In the graph below, there are large circular point marks. Is there a way of removing them?
My graph code is
\begin{figure}[H]
\begin{tikzpicture}
\begin{axis}[
height=9cm,
width=12cm,
grid=major,
xlabel={Levels},
ylabel={Speed},
legend style={
cells={anchor=east},
legend pos=outer north east,
}]
You can easily do what you want. Just use something like the following:
\begin{tikzpicture}
\begin{axis}[skip coords between index={2}{3}]
\addplot table [x=a, y=c, col sep=comma] {data.csv};
\end{axis}
\end{tikzpicture}
Notice that when you want to remove line 3, it is the first number (2) that identifies it, because if you have ...index={a}{b} it removes lines with index i such that a<= i<b. This is true because we start counting at i=0, so the line you want to remove is indexed by i=2. You can add multiple lines to be skipped if you want, like:
...
\begin{axis}[skip coords between index={2}{3},
skip coords between index={5}{6}]
...
This will remove data line 3 (i=2) and 6 (i=5)in the original file (not counting headers, and assuming you had that many lines). In your example, now with data in a seperate file, you could remove the first (0) and last (4) using:
\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[skip coords between index={0}{1},
skip coords between index={4}{5}]
\addplot table [x=a, y=c, col sep=comma] {data.csv};
\end{axis}
\end{tikzpicture}
\end{document}
Producing
You can use
y filter/.expression={y==0 ? nan : y}
in the options of \addplot.
\documentclass{article}
% ---------------------------------- tikz
\usepackage{pgfplots} % to print charts
\pgfplotsset{compat=1.12}
\begin{document}
\begin{figure}
\centering
\begin{tikzpicture}
\begin{axis} [
% general
ybar,
scale only axis,
height=0.5\textwidth,
width=1.2\textwidth,
ylabel={\# Dots},
nodes near coords,
xlabel={Variation},
xticklabel style={
rotate=90,
anchor=east,
},
%enlarge x limits={abs value={3}},
]
\addplot+[y filter/.expression={y==0 ? nan : y}] table [
x=grade,
y=value,
] {
grade value
-11 0
-10 0
-9 0
-8 0
-7 0
-6 0
-5 3
-4 1
-3 2
-2 15
-1 11
0 179
1 8
2 1
3 0
4 1
5 2
6 0
7 0
8 0
9 0
10 0
11 0
};
\end{axis}
\end{tikzpicture}
\end{figure}
\end{document}
Best Answer
With
pgfplotsyou can use:mark=noneto disable the marksmark=*to specify the marker to useonly marksto show only the pointsCode: