siunitx: Bold single numeric cells

Question

I'm struggling to make a single numeric cell in an siunitx table bold. (A similar question for making a whole column bold is available here.)

I want to define a simple macro which I can set for the largest value in a row to make it bold.

A quick MWE:

\documentclass{standalone}
\usepackage{siunitx}
\usepackage{times}

\newcommand{\maxf}[1]{\ensuremath{\mathbf{#1}}}

\begin{document}


\begin{tabular}{S[table-format=1.2]S[table-format=2.2]}
\sisetup{detect-weight=true,detect-inline-weight=math}
{A} & {B} \\
1.01 & \maxf{11.1}\\
\maxf{2.1} & 1.94 \\
\end{tabular} 

\end{document}

(I use times because the math font (CM) and text font (Times) are slightly different in my document ... this is just to highlight that need to format numbers in math mode.)

As I understand it, the following line should make siunitx listen for bold in math font.

\sisetup{detect-weight=true,detect-inline-weight=math}

But then I get the following:

... the decimals are not aligned in either column.

If I instead try:

\newcommand{\maxf}[1]{\ensuremath{\boldmath #1}}

...with boldmath used in page 18 of the siunitx documentation (have never seen this command before), the numbers do not appear bold.

---

• How can I define a macro (\maxf) to make single numeric cells bold in math mode and keep decimals aligned in siunitx?
• If this is not possible or convenient, what highlighting options are available? For example, I notice that underlining using \newcommand{\maxf}[1]{\ensuremath{\underline{#1}} breaks decimal alignment.

---

EDIT, with Joseph's code below, I get the following (no bold):

EDIT3 This was because I had an older version of siunitx (v 2.3). I later upgraded to version 2.5 and it worked.

---

EDIT2 I solved my original highlighting needs by shading the cells of the max results instead.

\documentclass{standalone}
\usepackage{siunitx}
\usepackage{times}
\usepackage[table]{xcolor}

\newcommand{\maxf}[1]{{\cellcolor[gray]{0.8}} #1}

\begin{document}


\begin{tabular}{S[table-format=1.2]S[table-format=2.2]}
\sisetup{detect-weight=true,detect-inline-weight=math}
{A} & {B} \\
1.01 & \maxf{11.1}\\
\maxf{2.1} & 1.94 \\
\end{tabular} 

\end{document}

Answer 1

The recommended way to do this is to use \bfseries

\documentclass{standalone}
\usepackage{siunitx}
\begin{document}
\sisetup{detect-weight=true,detect-inline-weight=math}
\begin{tabular}{S[table-format=1.2]S[table-format=2.2]}
{A} & {B} \
1.01 & \bfseries 11.1\
\bfseries 2.1 & 1.94 \
\end{tabular}
\end{document}

Note that you need to set up the font detected outside of the first cell, as table cells form groups.