I'm trying to draw the following plot:

```
\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{pgfplots}
\pgfplotsset{compat=1.9}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
ybar,
ymin=0, ymax=90,
width=5.5cm,
height=6cm,
symbolic x coords={A,B},
xtick=data,
bar width=15pt,
axis lines*=left,
ytick={10,30,...,90},
nodes near coords,
xticklabel style={text height=1.5ex},
ymajorgrids,
enlarge x limits=.3,
]
\addplot[fill=red] coordinates {
(A,16.6)
};
\addplot[fill=green] coordinates {
(B,23.9)
};
\end{axis}
\end{tikzpicture}
\end{document}
```

However it does not seem to work out: the second xtick coordinate (B) doesn't show up.

What I want is to have a simple plot with two or more bars each with a different color.

thanks for your help

## Best Answer

When you use

`xtick=data`

, only the first`\addplot`

command is used to determine the tick positions. To get both tick labels, use`xtick={A,B}`

.By default, PGFPlots assumes that each

`\addplot`

series will have values at the same coordinates, which is why the bars for each series are offset to prevent overlap. In your special case of all`\addplot`

commands using different coordinates, that's not desired. To switch off this shift, set set`bar shift=0pt`

.