\documentclass{article}
\usepackage{etoolbox}
\tracingpatches
\usepackage{multicol}
\makeatletter
\show\balance@columns
\edef\reset@newlinechar{\newlinechar\the\newlinechar}
\newlinechar-1 %
\patchcmd{\balance@columns}
{\ifshr@nking \vfill \fi}
{\CHANGED}
{}
{}
\show\balance@columns
\reset@newlinechar
You can use the \substack command from the \amsmath package, like this:
\begin{equation}
d(\vec{x},\vec{y}) =
\sum_{\substack{Z_{xy}\in\vec{Z}_{xy}\\
\forall x\in\vec{x}\\
\forall y\in\vec{y}}}
f(Z_{xy})
\end{equation}
However, the result still ...
Here is the code I am working with:
\documentclass{article}
\usepackage{filecontents}
\begin{filecontents}{measurements.dat}
sample num-bugs num-part other-measure another
5 80 190 200 210
15 520 410 430 350
25 650 640 630 ...
