How can I replace the dot with a comma in x coords?
\documentclass[border=10pt, 12pt]{standalone}
\usepackage{pgfplotstable}
\usepackage[utf8]{inputenc}
\usepackage{pgfplots}
\usepackage{times}
\date{September 2020}
\begin{document}
\pgfplotstableread[col sep=semicolon,header=false]{
$(-\infty.25)$;60
$\langle25.30)$;105
$\langle30.35)$; 138
$\langle35.40)$; 126
$\langle40.45)$; 217
$\langle45.50)$; 185
$\langle50.\infty)$; 150
}\data
\begin{tikzpicture}
\begin{axis}[
ybar stacked,
ymajorgrids=true,
xmajorgrids=true,
grid style=dashed,
ybar=0pt,
bar width=25pt,
xlabel={Věková skupina $j$\,[věk]},
ylabel={Nálet [h]},
width=13cm,
height=8cm,
enlarge x limits=0.15,
symbolic x coords={$(-\infty.25)$, $\langle25.30)$, $\langle30.35)$, $\langle35.40)$, $\langle40.45)$, $\langle45.50)$, $\langle50.\infty)$},
xtick=data, bar width=30pt,nodes near coords,
compat=newest, scaled y ticks={base 10:0},
]
\addplot table {\data};
\end{axis}
\end{tikzpicture}
\end{document}
Thanks


\tikzsetcommands etc., such that when somebody runs your code there are no errors and the output is the same as in your screenshot. – Marijn May 21 '21 at 09:18