Ciao! ho trovato molto interessante questa dispensa e ho provato ad usarla per realizzare un grafico a barre verticali.
Pure seguendo l’indicazione di inserire una variabili in più e il comando xticklabel interval boundaries , l’etichetta delle colonne resta una colonna indietro.
\begin{tikzpicture}
\begin{axis}
[ybar,ymin=0,ymax=15,xtick=data,
width=13cm, ymajorgrids=true,
ylabel={$\%$},
xtick pos=left,
x tick label style=%
{rotate=0,anchor=east, font=\footnotesize},
every axis y label/.%
append style={rotate=90},
xticklabel interval boundaries,
symbolic x coords={$15$,$16$,$17$,$18$,$19$,
$20$,$21$,$22$,$23$,
$24$, $25$,$26$,$27$, $28$, $29$, $30$, $31$, $32$, $33$, $34$, $35$,$36$,$37$,$38$,$39$,$40$,$41$,$42$,$43$,$44$,$45$},
title={Distribuzione dei pazienti nei 30 RUGs – CDA}]
\addplot
[ybar interval=1cm ,fill=purple,
draw=black] coordinates{
($15$,1.22)
($16$,0 )
($17$,0.816326531)
($18$,0.408163265 )
($19$,1.224489796 )
($20$,2.040816327 )
($21$,1.224489796 )
($22$,0 )
($23$,2.040816327 )
($24$,1.632653061 )
($25$,0.408163265 )
($26$,2.040816327 )
($27$,10.6122449 )
($28$,10.6122449 )
($29$,0 )
($30$,0 )
($31$,0 )
($32$,11.83673469 )
($33$,1.632653061 )
($34$,3.673469388 )
($35$,1.632653061 )
($36$,3.673469388 )
($37$,2.857142857 )
($38$,13.06122449 )
($39$,0 )
($40$,7.755102041 )
($41$,0 )
($42$,5.306122449 )
($43$,1.224489796 )
($44$,13.06122449 )
($45$,0 )
};
\end{axis}
\end{tikzpicture}
Ho sbagliato qualcosa vero?
matilde