Misplaced \omit. ...\w{wk} & \w{jg} & \w{cl} & \w{rn}\& \w{cl}

Question

I am using Qrrbrbirlbel's solution to build the confusion matrix as given in the figure. The problem is when extend the rows and column to 10 as given in the code it gives me the error as stated in the title. I have to draw 14*14 matrix. Kindly help

      \documentclass{article}
\usepackage[table]{xcolor}
\usepackage{array,hhline}
\makeatletter
\newcommand*{\ccol}[1]{%
    \ifdim#1pt<.5pt\relax\else\color{white}\fi
    \edef\x{\noexpand\cellcolor[gray]{\strip@pt\dimexpr1pt-#1pt}}\x
    #1%
}
\newlength{\cellwidth}
\settowidth{\cellwidth}{0.00}
\def\jline{\\\hhline{~*{10}{|-}|}}
\makeatother

\begin{document}
    \begin{tabular}{l*{10}{|>{\centering\arraybackslash}m{\cellwidth}}|}
        \noalign{\gdef\w#1{\multicolumn{1}{c}{#1}}}
        \w{} & \w{hw} & \w{bx} & \w{wk} & \w{jg} & \w{cl} & \w{rn}\& \w{cl} & \w{rn}\& \w{cl} & \w{rn}\jline
        ving & \ccol{1} & 0 & 0 & 0 & 0 & 0& 0 & 0& 0 & 0\jline
        xing & 0 & \ccol{0.92} & \ccol{0.08} & 0 & 0 & 0 & 0 & 0& 0 & 0\jline
        king & 0 & \ccol{0.03} & \ccol{0.97} & 0 & 0 & 0& 0 & 0& 0 & 0\jline
        ging & 0 & 0 & 0 & \ccol{1} & 0 & 0& 0 & 0& 0 & 0\jline
        ping & 0 & 0 & 0 & 0 & \ccol{1} & 0& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        \noalign{\global\let\w\undefined}
    \end{tabular}
\end{document}

Thank you Daleif, i have replaced it and now its giving this error: Misplaced \omit. ...\w{wk} & \w{jg} & \w{cl} & \w{rn}& \w{cl} — umar, Feb 23 '19 at 07:36
Then update your question. I wouldn't define \w at that location. — daleif, Feb 23 '19 at 07:38
Daleif, Should i update the question by replacing 10 with {10} and with new error? — umar, Feb 23 '19 at 07:48
I'm voting to close this question as off-topic because the issue is due to a typo. — egreg, Feb 23 '19 at 09:43
What's the purpose of defining \w inside \noalign and to make it globally undefined at the end? This will overwrite any standing definition of \w. Thus it's much better to do \newcommand{\w}{...} in the preamble. — egreg, Feb 23 '19 at 10:11

pip · Accepted Answer · 2019-02-23T09:52:27.203

2

The problem appears to be comint from the definition of \w (possibly related).

The simplest fix would be to remove that definition and just manually write out the \multicolumn command for the first row:

    \begin{tabular}{l*{10}{|>{\centering\arraybackslash}m{\cellwidth}}|}
        % \noalign{\gdef\w#1{\multicolumn{1}{c}{#1}}}
        \multicolumn{1}{c}{}& \multicolumn{1}{c}{hw} & \multicolumn{1}{c}{bx} & \multicolumn{1}{c}{wk} & \multicolumn{1}{c}{jg} & \multicolumn{1}{c}{cl} & \multicolumn{1}{c}{rn} & \multicolumn{1}{c}{cl} & \multicolumn{1}{c}{rn} & \multicolumn{1}{c}{cl} & \multicolumn{1}{c}{rn}\jline
        ving & \ccol{1} & 0 & 0 & 0 & 0 & 0& 0 & 0& 0 & 0\jline
        xing & 0 & \ccol{0.92} & \ccol{0.08} & 0 & 0 & 0 & 0 & 0& 0 & 0\jline
        king & 0 & \ccol{0.03} & \ccol{0.97} & 0 & 0 & 0& 0 & 0& 0 & 0\jline
        ging & 0 & 0 & 0 & \ccol{1} & 0 & 0& 0 & 0& 0 & 0\jline
        ping & 0 & 0 & 0 & 0 & \ccol{1} & 0& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        ning & 0 & 0 & 0 & 0 & 0 & \ccol{1}& 0 & 0& 0 & 0\jline
        % \noalign{\global\let\w\undefined}
    \end{tabular}

Output:

edited Feb 23 '19 at 09:52

answered Feb 23 '19 at 08:44

pip

1,847

Thank you very much. There is only one problem left that this in textstudio editor there are error appearing on & (highlighted with red color) and when i bring the mouse cursor over it gives(more cols then specified). Should i add the snapshot of it ? – umar Feb 23 '19 at 09:09
Does the message go if you change l*{10} to l*{11}? – pip Feb 23 '19 at 09:10
It remains the same even by replacing with 1*{11}. – umar Feb 23 '19 at 09:43
It is difficult for me to tell because I don't have texstudio. Perhaps the program does not recognise the \jline command. Does it still compile? If so, I wouldn't worry about it. – pip Feb 23 '19 at 09:56
Yes, It compile perfectly.. I was only worried about the warnings that are appearing on the & by highlighting with red color. – umar Feb 23 '19 at 10:02

Misplaced \omit. ...\w{wk} & \w{jg} & \w{cl} & \w{rn}\& \w{cl}

1 Answers1