Graphics, Figures & Tables ⇒ Tables and Colors

[ioctlvoid]

I'm having a lot of trouble trying to color individual cells in a table with a specific background and foreground color.

See the attached picture for a depiction of what I'm trying to obtain with LaTeX.

This is what I have in LaTeX so far:

Code: Select all

\begin{table}[H]
\caption{Register segmentation}
\begin{center}
\begin{tabular}{ | c | c | c | c | c | c | c | c | c |}
\hline
\hline
\textbf{RAX} & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits\\
\hline
\multicolumn{1}{|>{\color{red}\columncolor[Yellow]{0.8}}l||}{yellow color} & \multicolumn{1}{|>{\columncolor{Blue}}l|}{blue color} & 8 bits & bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits\\
\hline
\textbf{EAX} & - & - & - & - & 8 bits & 8 bits & 8 bits & 8 bits\\
\hline
\textbf{AX} & - & - & - & - & - & - & 8 bits & 8 bits\\
\hline
\textbf{AH} & - & - & - & - & - & - & 8 bits & -\\
\hline
\textbf{AL} & - & - & - & - & - & - & - & 8 bits\\
\hline
\end{tabular}
\end{center}
\label{table1}
\end{table}

However, I get the following errors when parsing the file:

Code: Select all

! LaTeX Error: Undefined color model `Yellow'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.434 ...lumncolor[Yellow]{0.8}}l||}{yellow color}
                                                   & \multicolumn{1}{|>{\col...

? 
! Emergency stop.

I do not get these errors when I simply use \rowcolor or just plain \textcolor.

What is wrong? Why do I get these errors? In my preamble I have:

Code: Select all

\usepackage[dvipsnames,usenames]{color}
\usepackage{array}
\usepackage{colortbl}

[localghost]

Please always provide a minimal example that is compilable as is for everybody. Otherwise giving specific help becomes very difficult. Especially when a problem is more complicated.

The error message indicates that the color »Yellow« is not defined. Furthermore you are using the \multicolumn command not correctly. The below example generates the table in your attachment.

Code: Select all

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}                  % Enable Cork Encoding (Type 1 fonts)
\usepackage[tableposition=top]{caption}   % Customization of caption
\usepackage[dvipsnames,table]{xcolor}     % »table« option loads package »colortbl«
\usepackage{array}                        % Enhancements for tables

\begin{document}
  \begin{table}[!ht]
    \caption{Register segmentation}\label{tab:reg-seg}
    \centering
    \begin{tabular}{|>{\bfseries\columncolor{cyan!25}}c|c|c|c|c|c|c|>{\columncolor{yellow}}c|>{\columncolor{yellow}}c|}\hline
      \rowcolor{yellow}
      \cellcolor{cyan!25}RAX & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits & 8 bits \\ \hline
      EAX &  ---   &  ---   &  ---   &  ---   & \cellcolor{yellow}8 bits & \cellcolor{yellow}8 bits & 8 bits & 8 bits \\ \hline
      AX  &  ---   &  ---   &  ---   &  ---   &  ---   &  ---   & 8 bits & 8 bits \\ \hline
      AH  &  ---   &  ---   &  ---   &  ---   &  ---   &  ---   & 8 bits &  \cellcolor{white}---   \\ \hline
      AL  &  ---   &  ---   &  ---   &  ---   &  ---   &  ---   & \cellcolor{white}---   & 8 bits \\ \hline
    \end{tabular}
  \end{table} 
\end{document}

Don't be irritated by possibly vanishing rules in the table. This is mostly a viewer problem. Zoom in to check that all rules are present. The printed output should be OK.


Best regards and welcome to the board
Thorsten