0

I am trying to typeset a table with data values and their uncertainties using LaTeX with the siunitx package. Some data values within a given column are much larger than 1, and others are much smaller than 1. The siunitx package first aligns the numbers at their decimal point, and then aligns the data at the "+/-" sign used for the uncertainty.

This two-step alignment is not desired in my situation. I need the data aligned at the "+/-" sign only.

How can I achieve this?

Here is a MWE to illustrate the problem:

\documentclass[12pt]{article}
\usepackage{booktabs}
\usepackage{siunitx}

\sisetup{separate-uncertainty=true , table-align-uncertainty=true }

\begin{document}

\begin{table}
\centering
\begin{tabular}{ l S[table-format=3.7(2)] }
\toprule
{Column 2}  & {Column 2} \\
Hello       & 124(5) \\
World       & 0.0005678(9) \\
\bottomrule
\end{tabular}
\end{table}

\end{document}

enter image description here

-1

enter image description here

\documentclass[12pt]{article}
\usepackage{booktabs}
\usepackage{siunitx,etoolbox}

\sisetup{separate-uncertainty=true , table-align-uncertainty=true }

\begin{document}

\begin{table}
\centering
\begin{tabular}{ l S[table-format=3.7,detect-weight,mode=text] @{${}\pm{}$}
S[table-format=1.7,detect-weight,mode=text] }
\toprule
{Column 2}  &\multicolumn{2}{c}{Column 2} \\
{Hello}       & 124.0000000 & 5 \\
{World }      & 0.0005678 & 0.0000009 \\
\bottomrule
\end{tabular}
\end{table}

\end{document}
| improve this answer | |
  • Please be aware that this will drastically change the number of significant figures of the entry in the first row. – leandriis Apr 6 at 9:26
  • 2
    If you want to split up the value and its uncertainty into two columns, you could simply use r @{${}\pm{}$} l instead of the two S type columns. – leandriis Apr 6 at 9:33
  • Well, I could certainly achieve the right output by manually splitting the value and its uncertainty into two columns. However, that's far from elegant and certainly not convenient. There must be a better way by using the magic of siunitx. – mbrennwa Apr 6 at 13:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.