While running this table i got errors

Question

\begin{tabular}{|p{0.3in}|p{0.9in}|p{0.2in}|p{0.3in}|p{0.2in}|p{0.2in}|p{0.2in}|p{0.2in}|p{0.2in}|p{0.3in}|p{0.3in}|p{0.2in}|p{0.3in}|p{0.2in}|p{0.3in}|} \hline 
Sl.No. &  Author \& year   & \multicolumn{7}{|p{1.5in}|}{Level-1 (Ridge)} & \multicolumn{2}{|p{0.6in}|}{Level-2 (Minutiae)} & \multicolumn{4}{|p{0.9in}|}{Methodology}  \hline 
 &  & Ridge Density & Ridge Orientation & Ridge Count  & Ridge Length  & Ridge Type & Ridge Curve Direction  & Ridge Frequency & Minutiae Points  (x, y, O)  & Minutiae  Type & Code based  & Indexing technique & Clustering  & Similarity score  \hline 
1 & J. Boer et al.\newline 2001 & Y &  &  &  &  &  &  & Y & Y &  & F &  &   \hline 
2 & B. Bhanu  et al.\newline 2003 &  & Y &  &  &  &  &  & Y & Y &  &  &  & Y  \hline 
3 & T. Liu et al.\newline 2005 &  &  &  &  &  &  &  &  &  &  &  &  & Y  \hline 
4 & J. Li et al.\newline 2006 &  &  &  &  &  &  &  &  &  &  &  &  & Y  \hline 
5 & J.Feng  et al.\newline 2006 & Y &  &  &  &  &  &  & Y & Y &  & H &  &   \hline 
6 & A.Ross  et al.\newline 2007 &  &  &  &  &  & Y &  & Y & Y &  &  &  & Y  \hline 
7 & X. Liang et al.\newline 2007 &  &  &  &  &  &  &  & Y & Y &  &  &  & Y  \hline 
8 & Gyaourova et al.\newline 2008 &  &  &  &  &  &  &  &  &  & Y &  &  & Y  \hline 
9 & M. Vatsa et al.\newline 2008 &  &  &  &  &  &  &  & Y & Y &  &  & M &   \hline 
10 & S. Biswas  et al.\newline 2008 &  &  &  &  &  & Y &  &  &  &  &  & K &   \hline 
11 & Xin Shuai et al.\newline 2008 &  &  &  &  &  &  &  &  &  &  & H &  &   \hline 
12 & P Mansukhani\newline 2010 &  &  &  &  &  &  &  & Y &  &  & T &  &   \hline 
13 & R. Cappelli\newline Dec 2011 &  &  &  &  &  &  &  & Y & Y &  & H &  &   \hline 
14 & R. Cappelli\newline May 2011 &  & Y &  &  &  &  & Y &  &  &  &  &  & Y  \hline 
15 & R.Cappelli et al.\newline 2012 &  & Y &  &  &  &  & Y & Y & Y &  &  &  & Y  \hline 
16 & M. Liu et al.\newline 2012 &  &  & Y & Y & Y & Y &  &  &  &  &  & K &  \hline 
17 & Iloanusi et al.\newline 2013 &  &  &  &  &  &  &  & Y  & Y  &  & IS &  &   \hline 
\end{tabular}

Package array Error: Illegal pream-token (S): `c' used. S

Yes, both suggestions work fine ... the problem is that you do not 'end' your rows with a \. — phx, Jul 14 '15 at 06:49

score 2 · Accepted Answer · edited Apr 13 '17 at 12:35

When a table row is ended, there must be a \\, so consider adding \\ hline at the very end of each row. The table is horrible anyway and needs too many modifications (here in this site, you will find more suggestions), so, consider also using a sidewaystable (See this question, e.g.).

\documentclass[a4paper]{article}
\usepackage[margin=2cm]{geometry}
\begin{document}
\tiny
\begin{tabular}{|p{.2in}|p{.7in}|p{.2in}|p{.3in}|p{.2in}|p{.2in}|p{.2in}|p{.2in}|p{.2in}|p{.3in}|p{.3in}|p{.2in}|p{.3in}|p{.2in}|p{.3in}|} 
\hline 
Sl.No. &  Author \& year   & \multicolumn{7}{|p{1.5in}|}{Level-1 (Ridge)} & \multicolumn{2}{|p{0.6in}|}{Level-2 (Minutiae)} & \multicolumn{4}{|p{0.9in}|}{Methodology}\\  \hline 
 &  & Ridge Density & Ridge Orientation & Ridge Count  & Ridge Length  & Ridge Type & Ridge Curve Direction  & Ridge Frequency & Minutiae Points  (x, y, O)  & Minutiae  Type & Code based  & Indexing technique & Clustering  & Similarity score\\  \hline 
1 & J. Boer et al.\newline 2001 & Y &  &  &  &  &  &  & Y & Y &  & F &  &\\   \hline 
2 & B. Bhanu  et al.\newline 2003 &  & Y &  &  &  &  &  & Y & Y &  &  &  & Y\\  \hline 
3 & T. Liu et al.\newline 2005 &  &  &  &  &  &  &  &  &  &  &  &  & Y \\ \hline 
4 & J. Li et al.\newline 2006 &  &  &  &  &  &  &  &  &  &  &  &  & Y \\ \hline 
5 & J.Feng  et al.\newline 2006 & Y &  &  &  &  &  &  & Y & Y &  & H &  & \\  \hline 
6 & A.Ross  et al.\newline 2007 &  &  &  &  &  & Y &  & Y & Y &  &  &  & Y \\ \hline 
7 & X. Liang et al.\newline 2007 &  &  &  &  &  &  &  & Y & Y &  &  &  & Y \\ \hline 
8 & Gyaourova et al.\newline 2008 &  &  &  &  &  &  &  &  &  & Y &  &  & Y \\ \hline 
9 & M. Vatsa et al.\newline 2008 &  &  &  &  &  &  &  & Y & Y &  &  & M &  \\ \hline 
10 & S. Biswas  et al.\newline 2008 &  &  &  &  &  & Y &  &  &  &  &  & K & \\  \hline 
11 & Xin Shuai et al.\newline 2008 &  &  &  &  &  &  &  &  &  &  & H &  & \\  \hline 
12 & P Mansukhani\newline 2010 &  &  &  &  &  &  &  & Y &  &  & T &  &  \\ \hline 
13 & R. Cappelli\newline Dec 2011 &  &  &  &  &  &  &  & Y & Y &  & H &  & \\  \hline 
14 & R. Cappelli\newline May 2011 &  & Y &  &  &  &  & Y &  &  &  &  &  & Y\\  \hline 
15 & R.Cappelli et al.\newline 2012 &  & Y &  &  &  &  & Y & Y & Y &  &  &  & Y \\ \hline 
16 & M. Liu et al.\newline 2012 &  &  & Y & Y & Y & Y &  &  &  &  &  & K & \\ \hline 
17 & Iloanusi et al.\newline 2013 &  &  &  &  &  &  &  & Y  & Y  &  & IS &  & \\  \hline 
\end{tabular}
\end{document}

Here is a picture of that giant table:

enter image description here

Here is a relatively improved version using booktabs and xcolor package for alternating coloring:

\documentclass[a4paper]{article}
\usepackage[margin=2cm]{geometry}
\usepackage[table]{xcolor}
\usepackage{rotating,booktabs,tabulary}
\begin{document}

\begin{sidewaystable}
\tiny
\renewcommand{\arraystretch}{1.2}
\rowcolors{3}{}{gray!10}
\begin{tabulary}{\linewidth}{*{15}{L}} 
\toprule 
 &     & \multicolumn{7}{c}{Level-1 (Ridge)} & \multicolumn{2}{c}{Level-2 (Minutiae)} & \multicolumn{4}{c}{Methodology}\\ \cmidrule(r-r){3-9} \cmidrule(r-r){10-11} \cmidrule(r-r){12-15}
Sl.No. &  Author \& year & Ridge Density & Ridge Orientation & Ridge Count  & Ridge Length  & Ridge Type & Ridge Curve Direction  & Ridge Frequency & Minutiae Points  (x, y, O)  & Minutiae  Type & Code based  & Indexing technique & Clustering  & Similarity score\\   
1 & J. Boer et al.\newline 2001 & Y &  &  &  &  &  &  & Y & Y &  & F &  &\\    
2 & B. Bhanu  et al.\newline 2003 &  & Y &  &  &  &  &  & Y & Y &  &  &  & Y\\   
3 & T. Liu et al.\newline 2005 &  &  &  &  &  &  &  &  &  &  &  &  & Y \\  
4 & J. Li et al.\newline 2006 &  &  &  &  &  &  &  &  &  &  &  &  & Y \\  
5 & J.Feng  et al.\newline 2006 & Y &  &  &  &  &  &  & Y & Y &  & H &  & \\   
6 & A.Ross  et al.\newline 2007 &  &  &  &  &  & Y &  & Y & Y &  &  &  & Y \\  
7 & X. Liang et al.\newline 2007 &  &  &  &  &  &  &  & Y & Y &  &  &  & Y \\  
8 & Gyaourova et al.\newline 2008 &  &  &  &  &  &  &  &  &  & Y &  &  & Y \\  
9 & M. Vatsa et al.\newline 2008 &  &  &  &  &  &  &  & Y & Y &  &  & M &  \\  
10 & S. Biswas  et al.\newline 2008 &  &  &  &  &  & Y &  &  &  &  &  & K & \\   
11 & Xin Shuai et al.\newline 2008 &  &  &  &  &  &  &  &  &  &  & H &  & \\   
12 & P Mansukhani\newline 2010 &  &  &  &  &  &  &  & Y &  &  & T &  &  \\  
13 & R. Cappelli\newline Dec 2011 &  &  &  &  &  &  &  & Y & Y &  & H &  & \\   
14 & R. Cappelli\newline May 2011 &  & Y &  &  &  &  & Y &  &  &  &  &  & Y\\   
15 & R.Cappelli et al.\newline 2012 &  & Y &  &  &  &  & Y & Y & Y &  &  &  & Y \\  
16 & M. Liu et al.\newline 2012 &  &  & Y & Y & Y & Y &  &  &  &  &  & K & \\  
17 & Iloanusi et al.\newline 2013 &  &  &  &  &  &  &  & Y  & Y  &  & IS &  & \\ \bottomrule  
\end{tabulary}
\end{sidewaystable}
\end{document}

enter image description here

While running this table i got errors

1 Answers1