Ttdfjt

I have a ybar graph using the pgfplots package in which I use nodes near coords to display y values near the tops of the bars. There are some outliers in the data, for which I'd like to show a bar filled to the top of the graph. In this case, the y value should be displayed in the middle of the bar. I have tried to use visualization depends on to set a different yshift for the nodes near the coordinates for these outliers. However, it seems that pgfplots simply does not draw these nodes at all, because the node is still not displayed even with this yshift.

The below example clarifies this. Here I shift the nodes for values larger than 6. The first value is correctly placed above the bar; the second value is correctly shifted down. However, the last value ((3,9)) does not appear at all. How can I get this node to appear as well?

^{NB: the value for myshift here is not finalized yet; I haven't found a good way yet to calculate this appropriately. Suggestions welcome.}

documentclassarticle
usepackagepgfplots
begindocument
begintikzpicture
 beginaxis[
 ybar,
 ymin=0,ymax=8,
 xmin=0,xmax=4,
 nodes near coords,
 visualization depends on=ifthenelse(y>6,-y,0) as myshift,
 every node near coord/.append style=yshift=myshift em]
 addplot coordinates (1,5) (2,7) (3,9);
 endaxis
endtikzpicture
enddocument

Not exactly what you were asking for, but I think this is a better alternative than shifting the nodes near coords to the middle of the bar. Instead I still write it on top of it, although it is "truncated".

% used PGFPlots v1.16
documentclass[border=5pt]standalone
usepackagepgfplots
begindocument
begintikzpicture
 beginaxis[
 ybar,
 xmin=0,
 xmax=4,
 ymin=0,
 ymax=8,
 xtick=data,
 % -----------------------------------------------------------------
 % we store the *original* y value in a variable ...
 visualization depends on=rawy as rawy,
 % ... which value should be shown in the `nodes near coords' ...
 nodes near coords=pgfmathprintnumberrawy,
 % ... and we want to limit the range of the bars to the axis limits
 restrict y to domain*=
 pgfkeysvalueof/pgfplots/ymin:pgfkeysvalueof/pgfplots/ymax
 ,
 % -----------------------------------------------------------------
 ]
 addplot coordinates (1,5) (2,7) (3,10);
 endaxis
endtikzpicture
enddocument

Maybe clip = false is what you are looking for.

documentclassarticle
usepackagepgfplots
begindocument
begintikzpicture
 beginaxis[
 ybar,
 ymin = 0,
 ymax = 8,
 xmin = 0,
 xmax = 4,
 nodes near coords,
 clip = false, % <--- Added
 ]
 addplot coordinates (1,5) (2,7) (3,9);
 endaxis
endtikzpicture
enddocument

Update 1

This almost works -- if I use clip = true then the 9 is not printed anymore at the bottom (strangely).

Maybe some of the experts here can support.

documentclassarticle
usepackagepgfplots
begindocument

% Based on
% https://tex.stackexchange.com/questions/110879

begintikzpicture
 beginaxis[
 ybar,
 ymin = 0,
 ymax = 8,
 xmin = 0,
 xmax = 4,
 nodes near coords,
 clip = false, % <--- Added, `true` does not work
 visualization depends on = y as myYOffset, % <--- Added
 every node near coord/.append style = 
 shift = (axis direction cs: 0, -myYOffset) % <--- Added 
 ,
 ]
 addplot coordinates (1,5) (2,7) (3,9);
 endaxis
endtikzpicture
enddocument

Very similar to Dr. Manuel Kuehner's answer except that a clip for the plots is added by hand.

documentclassarticle
usepackagepgfplots
pgfplotssetcompat=1.16
begindocument
begintikzpicture
 beginaxis[clip=false,
 ybar,
 ymin=0,ymax=8,
 xmin=0,xmax=4,
 nodes near coords,
 visualization depends on=y as myy,
 nodes near coords style=at=(0,-myy/2)]
 clip (current axis.south west) rectangle (current axis.north east);
 addplot coordinates (1,5) (2,7) (3,9);
 endaxis
endtikzpicture
enddocument