Table Borders Missing – Solving Multirow Border Problems in LaTeX

Question

Please how can i get proper table borders of table shown below. please see my code

\documentclass[journal]{IEEEtran}
\usepackage{multirow}
\usepackage{array}
\usepackage{tabu} 
\usepackage{multicol,graphicx}
\usepackage{makecell}
\usepackage{array}
\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>
{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}

\begin{document}
\begin{table*}
\renewcommand{\arraystretch}{1.3}
\caption{Extreme Learning Machine(ELM) with kernel classifier having reduced dimension of feature vectors individual accuracy}
\begin{tabular}{|l|l|C{0.5cm}|L{2cm}|l|l|l|l|} \hline
Algorithm & Dimension &  \multirow{ 6}{*}{\rotatebox{90}{\thead{ADD THESE\\ DIMENSIONS}}}   & Total after Adding Dimensions &Classifier &\multirow{1}{*}{\thead{ Dimension\\Reduction Technique}}             &\multirow{1}{*}{\thead{ Reduced\\Dimension}}&Accuracy \\ \cline{1-2} \cline{4-8} 
CDF & 4D & & &ELM & \multirow{5}{*}{\thead{Correlation as Dimension\\ Estimator, PCA as \\ Dimension Reduction}} &\multirow{5}{*}{\thead{26 dimensions \\ reduced to\\ 4 dimensions}} &\multirow{5}{*}{\thead{Combine accuracy\\ of 4\\ dimensional reduced\\ Feature Vector\\ is 68\%}} \\ \cline{1-2} \cline{5-5}\cline{5-5}
GO & 4D & &\multirow{3}{*}{\thead{4D + 4D + 4D \\ + 7D + 7D= 26D}} &ELM\\ \cline{1-2} \cline{5-5}
Bilateral & 4D & & &ELM \\ \cline{1-2} \cline{5-5}
SLDFFO & 7D & &  &ELM\\ \cline{1-2} \cline{5-5}
SSGSM & 7D & &  &ELM\\ \hline
\end{tabular}
\end{table*}
\end{document}

Answer 1

• missed vertical lines have nothing with use of multirow. there are missing ampersands. consequences are missing vertical lines.

  note, each rows had to have the one less ampersands as are number of columns

• it is sufficient in preamble lead each package only ones

• your table is unnecessary complicated and lead to iconsistent looks of table. for example:
  • with changes of column types from {|l|l|C{0.5cm}|L{2cm}|l|l|l|l|} to {|l|l|c|C{2.5cm}|c |C{2.5cm}|C{2cm}|C{2.5cm}|} and exploit capability of recent multirow package, except one all \theads can be removed in table body as well in column headers
  • with removing multirow all cells containing one line text become equal height
• considering above suggestion table code become much shorter, cleand and concise

revised table is:

\documentclass[journal]{IEEEtran}
%\usepackage{array} % loaded twice
\usepackage{multicol}
\usepackage{graphicx}
\usepackage{rotating}% added, for rothead
\usepackage{array, makecell, multirow, tabu}%merged in one line
%\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}} % not used
%\newcolumntype{C}[1]{>{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>{\centering\arraybackslash}m{#1}}% in this table is better use this definition

\begin{document}
    \begin{table*}
\settowidth\rotheadsize{DIMENSIONS}
\renewcommand\multirowsetup{\centering}
\renewcommand{\arraystretch}{1.5}
    \centering
\caption{Extreme Learning Machine(ELM) with kernel classifier having reduced dimension of feature vectors individual accuracy}
    \begin{tabular}{|l|l|c|C{2.5cm}|c|C{2.5cm}|C{2cm}|C{2.5cm}|}
    \hline
Algorithm
    & Dimension
        &  \multirow{6}{*}{\rothead{ADD THESE\\ DIMENSIONS}}
            & Total after Adding Dimensions
                & Classifier
                    & Dimension Reduction Technique
                        & Reduced Dimension
                            & Accuracy  \\
    \cline{1-2} \cline{4-8}
CDF & 4D    &
                & \multirow{5}{=}{4D + 4D + 4D\\ + 7D + 7D = 26D}
                    & ELM
                        & \multirow{5}{=}{Correlation as Dimension Estimator,
                                          PCA as Dimension Reduction}
                            & \multirow{5}{=}{26 dimensions reduced to 4 dimensions}
                                & \multirow{5}{=}{Combine accuracy of 4 dimensional
                                                  reduced Feature Vector is 68\%}    \\
    \cline{1-2} \cline{5-5}
GO          & 4D    &   &   & ELM   &   &   &   \\
    \cline{1-2} \cline{5-5}
Bilateral   & 4D    &   &   & ELM   &   &   &   \\
    \cline{1-2} \cline{5-5}
SLDFFO      & 7D    &   &   & ELM   &   &   &   \\
    \cline{1-2} \cline{5-5}
SSGSM       & 7D    &   &   & ELM   &   &   &   \\
    \hline
\end{tabular}
\end{table*}
\end{document}