Fit table into one column for IEEE has formatting problem

Question

I am trying to let this table to fit in one column but something is wrong.

Below the wrong behavior, also as you see it extends to the other column which is an error:

Below the desired behavior:

Below the format I have so far:

\documentclass[conference]{IEEEtran}
\IEEEoverridecommandlockouts
\usepackage{cite}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{booktabs,chemformula}
\usepackage{multirow,booktabs,blindtext}
\usepackage{siunitx}
\usepackage{tabularx}
\usepackage{booktabs, makecell}
\usepackage{float}
\usepackage{seqsplit, collcell, ragged2e}
\newcolumntype{Y}{>{\arraybackslash\collectcell\seqsplit}X<{\endcollectcell}}
\usepackage{lipsum}

// some paragraphs....


\begin{table}[H]
  \centering\footnotesize
\setlength{\tabcolsep}{4pt}
\setlength{\extrarowheight}{3pt}
  \begin{tabularx}{\columnwidth}{>{\RaggedRight}X@{}ccc>{\RaggedRight}X@{}Y}
    \toprule
    Grouping & Dimensions & Rationale \\
    \midrule
 Analysis of publication data & Number of publications & Size of research field \\
 {} & Time distribution of publications & Trends in the research field \\
 {} & Most popular journals for publication & Journals where research is published \\
 {} & Most prolific authors & Leading researchers \\
 {} & Geography of scholars & Setting of scholars \\
 {} & Distribution of keywords & no info \\
 {} & Social network analysis of keywords & Central Concepts \\
    \bottomrule
  \end{tabularx}
\end{table}

I have used the folloiwng source in order to achieve the type of table I wanted and that was useful but I have some formatting problems as shown in the picture.

Also came across this other post which was also useful to understand the concept I am looking for but not to solve the problem.

RELATED QUESTION TO THE PRESENT QUESTION I have an additional question that is strictly related to this question: How do I make the same table occupying both columns instead of only one column? I thought that because it is a simple variation of the question that I could also have it here. Please let me know if I need to write a separate question for that too.

Thanks for pointing in the right direction to find a solution.

Answer 1

Like this:

\documentclass[conference]{IEEEtran}
\IEEEoverridecommandlockouts
\usepackage{cite}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{siunitx}    % v3!
\usepackage{ragged2e}
\usepackage{booktabs, makecell, multirow, tabularx}
\setcellgapes{2pt}
\newcolumntype{L}[1]{>{\RaggedRight\hspace{0pt}%
                     \hsize=#1\hsize}X}
\usepackage{lipsum}

\begin{document}
\lipsum[1]

    \begin{table}[ht]
\centering
\small
\setlength{\tabcolsep}{4pt}
\makegapedcells
\begin{tabularx}{\columnwidth}{@{}L{0.8}L{1.1}L{1.1} @{}}
    \toprule
Grouping    &   Dimensions  &   Rationale \\
    \midrule
\multirow[t]{2}{=}{1. Analysis of publication data}   
    &   Number of publications
        &   Size of research field \\
    &   Time distribution of publications
        &   Trends in the research field \\
    &   Most popular journals for publication
        &   Journals where research is published \\
    &   Most prolific authors
        &   Leading researchers \\
    &   Geography of scholars
        &   Setting of scholars \\
    &   Distribution of keywords
        &   no info \\
    &   Social network analysis of keywords
        & Central Concepts \\
    \addlinespace
\multirow[t]{2}{=}{2. Analysis of citation data}   
    &   Number of citations
        &   Central concepts \\
    &   Time distribution of citations
        &   Realtions between central concepts \\
    &   \dots
        &   \dots   \\
    \bottomrule
  \end{tabularx}
\end{table}
\lipsum
\end{document}

You have ill-defined table: in use are only three columns, but defined are six. Also cell formatting is to complicated. SE MWE, the code should be self-explanatory.