Consider the following example:
\documentclass{article} \usepackage{pstricks-add} \usepackage{booktabs} \psset{ unit = 0.7, dimen = middle, ticks = none, labels = none } \newcommand*\pind[2]{% \psset{linecolor = red} \psline(#1,0)(#1,#2) \psline(!#1 0.2 sub #2)(!#1 0.2 add #2) } \newcommand*\enkeltobservationer{% \begin{pspicture}(-0.5,-0.2)(5.9,6.3) \psaxes{->}(0,0)(-0.2,-0.2)(5.4,5.5)[\small{$x$},0][\small{$h(x)$},90] \pind{0.5}{3} \pind{1.0}{5} \pind{1.5}{3} \pind{2.0}{3} \pind{2.5}{4} \pind{3.0}{2} \pind{3.5}{5} \pind{4.0}{1} \pind{4.5}{4} \pind{5.0}{2} \end{pspicture}% } \newcommand*\soejle[2]{% \psset{fillcolor = red} \psframe[fillstyle = solid](!#1 0.5 sub 0)(#1,#2) } \newcommand*\intervaller{% \begin{pspicture}(-0.5,-0.2)(5.9,6.3) \psaxes{->}(0,0)(-0.2,-0.2)(5.4,5.5)[\small{$x$},0][\small{$h(x)$},90] \soejle{0.5}{3} \soejle{1.0}{5} \soejle{1.5}{3} \soejle{2.0}{3} \soejle{2.5}{4} \soejle{3.0}{2} \soejle{3.5}{5} \soejle{4.0}{1} \soejle{4.5}{4} \soejle{5.0}{2} \end{pspicture}% } \begin{document} \begin{table} \centering \begin{tabular}{l c c c} \toprule Begreb & Forkortelse & Enkeltobservationer & Intervaller \\ \midrule Hyppighed & $h(x)$ & \enkeltobservationer & \intervaller \\ \bottomrule \end{tabular} \end{table} \end{document} 
I would like to vertically center Hyppighed and $h(x)$ relative to the figures; how do I do that?



\clipboxbeing already defined. But take a look at this, it might help: tex.stackexchange.com/a/46390/18228