Can I hide a table column with the S type from siunitx?

Question

I found the related question Easiest way to delete a column?, which has a good answer for regular c type columns. But my data is formatted in the S type from siunitx, in the form of value \pm error. According to the array package, c is one of the supported column types, but the S type is not. Here is a MWE of what I tried:

\documentclass[a4paper]{article}
\usepackage{siunitx}
\usepackage{array}
\newcolumntype{H}{>{\setbox0=\hbox\bgroup}c<{\egroup}@{}} % hidden column for c
\newcolumntype{G}{>{\setbox0=\hbox\bgroup}S<{\egroup}@{}} % hidden column for S
\begin{document}
\fbox{
  \begin{tabular}{ccSc} % current format of my table, I want to hide the S column
    one & two & \text{S-type column} & three\
    1 & 2 & 2 \pm 1 & 3
  \end{tabular}
}
\fbox{
  \begin{tabular}{ccHc} % column hide solution from the linked question
    one & two & hide & three\
    1 & 2 & H & 3
  \end{tabular}
}
\fbox{
  \begin{tabular}{ccc} % intended result
    one & two & three\
    1 & 2 &  3
  \end{tabular}
}
\end{document}

The result is that in the second table, the third column is hidden. What I want to achieve is to hide the third column in the first table. But if I naively replace the S in the table format {ccSc} with my new G type {ccGc}, LaTeX throws an error:

! Extra }, or forgotten \endgroup.
<template> \unskip \egroup 
                           \__siunitx_table_print: \relax \d@llarend \do@row...
l.14 }
?

@egreg the problem is that the entries in the table don't work with c or H because of the 2 \pm 1. I get
<inserted text> $ l.14 }``` — skaphle, Oct 22 '20 at 18:20
@egreg What would a proper example look like? I thought I made a good MWE in my question. I could add the minimal non-working example, but it is only replacing S with G in the first table. Apologies if that is unclear. — skaphle, Oct 23 '20 at 11:02

score 1 · Accepted Answer · answered Oct 23 '20 at 17:45

You can add instructions to ignore \pm.

\documentclass[a4paper]{article}
\usepackage{siunitx}
\usepackage{array}
\newcolumntype{H}{>{\setbox0=\hbox\bgroup\let\pm\relax}c<{\egroup}@{}} % hidden column for c
\begin{document}
\begin{tabular}{ccS[table-format=1.0(1)]c}
one & two & \text{S-type column} & three\
1 & 2 & 2 \pm 1 & 3
\end{tabular}
\begin{tabular}{ccHc}
one & two & \text{S-type column} & three\
1 & 2 & 2 \pm 1 & 3
\end{tabular}
\end{document}

Can I hide a table column with the S type from siunitx?

1 Answers1