Draw an arrow that connect each column by the corresponding entry in LaTeX

[EngWiPy]

Hello,

I have the following Latex code, and I need to draw an arrow that connect each column by the corresponding entry in the last (separated) row, e.g.: the column [x_0^{(1)} x_0^{(2)} ... x_0^{(M)}]^T with the entry x_0^{(R)} and so on. How can I do that?

\documentclass{article}
\usepackage{tikz}
\usepackage{amsmath}
\usetikzlibrary{matrix}
\begin{document}

\tikzset{ 
    table/.style={
        matrix of nodes,
        row sep=-\pgflinewidth,
        column sep=-\pgflinewidth,
        nodes={
            rectangle,
            draw=black,
            align=center
        },
        minimum height=1.5em,
        text depth=0.5ex,
        text height=2ex,
        nodes in empty cells,
%%
        %every even row/.style={
            %nodes={fill=gray!20}
        %},
        column 1/.style={
            nodes={text width=2em,font=\bfseries}
        },
				column 2/.style={
            nodes={text=red}
        },
				column 3/.style={
            nodes={text=blue}
        },
				column 5/.style={
            nodes={text=violet}
        },
        row 5/.style={
            nodes={
                fill=gray!20,
                %text=black,
                font=\bfseries
            }
        }
    }
}

\begin{tikzpicture}

\matrix (first) [table,text width=6em]
{
$\mathbf{x}^{(1)}$   & $x_0^{(1)}$ & $x_1^{(1)}$ & $\cdots$ & $x_{N-1}^{(1)}$ \\
$\mathbf{x}^{(2)}$   & $x_0^{(2)}$ & $x_1^{(2)}$ & $\cdots$ & $x_{N-1}^{(2)}$ \\
$\vdots$             & $\vdots$    & $\vdots$    & $\ddots$ & $\vdots$ \\
$\mathbf{x}^{(M)}$   & $x_0^{(M)}$ & $x_1^{(M)}$ & $\cdots$ & $x_{N-1}^{(M)}$ \\[10mm]
$\mathbf{x}^{(R)}$   & $x_0^{(R)}$ & $x_1^{(R)}$ & $\cdots$ & $x_{N-1}^{(R)}$ \\
};


\end{tikzpicture}
\end{document}

Thanks in advance

 

[Hepth]

I did one for you. I checked out this site for examples, always love learning new latex packages.

www.texample.net/tikz/examples/feature/arrows/

Basically I labelled to areas using the label maker for nodes : |[name=a]|

Then after the matrix I drew an arrow from a to b. So repeat wherever you need it.

\matrix (first) [table,text width=6em]
{
$\mathbf{x}^{(1)}$   & $x_0^{(1)}$ & $x_1^{(1)}$ & $\cdots$ & $x_{N-1}^{(1)}$ \\
$\mathbf{x}^{(2)}$   & $x_0^{(2)}$ & $x_1^{(2)}$ & $\cdots$ & $x_{N-1}^{(2)}$ \\
$\vdots$             & $\vdots$    & $\vdots$    & $\ddots$ & $\vdots$ \\
|[name=a]| $\mathbf{x}^{(M)}$   & $x_0^{(M)}$ & $x_1^{(M)}$ & $\cdots$ & $x_{N-1}^{(M)}$\\[10mm]
|[name=b]| $\mathbf{x}^{(R)}$   & $x_0^{(R)}$ & $x_1^{(R)}$ & $\cdots$ & $x_{N-1}^{(R)}$ \\
};
 \draw[->,thick] (a) edge (b);

 

[EngWiPy]

I did one for you. I checked out this site for examples, always love learning new latex packages.

www.texample.net/tikz/examples/feature/arrows/

Basically I labelled to areas using the label maker for nodes : |[name=a]|

Then after the matrix I drew an arrow from a to b. So repeat wherever you need it.

\matrix (first) [table,text width=6em]
{
$\mathbf{x}^{(1)}$   & $x_0^{(1)}$ & $x_1^{(1)}$ & $\cdots$ & $x_{N-1}^{(1)}$ \\
$\mathbf{x}^{(2)}$   & $x_0^{(2)}$ & $x_1^{(2)}$ & $\cdots$ & $x_{N-1}^{(2)}$ \\
$\vdots$             & $\vdots$    & $\vdots$    & $\ddots$ & $\vdots$ \\
|[name=a]| $\mathbf{x}^{(M)}$   & $x_0^{(M)}$ & $x_1^{(M)}$ & $\cdots$ & $x_{N-1}^{(M)}$\\[10mm]
|[name=b]| $\mathbf{x}^{(R)}$   & $x_0^{(R)}$ & $x_1^{(R)}$ & $\cdots$ & $x_{N-1}^{(R)}$ \\
};
 \draw[->,thick] (a) edge (b);

Perfect. Look very nice. Thanks

 

[EngWiPy]

Another question: How can I remove a cell completely?

 

[alphy]

for your help!

I would recommend using the TikZ library "arrows.meta" to draw arrows connecting the columns to the corresponding entry in the last row. You can add the following code after the matrix declaration in your existing code:

\begin{tikzpicture}
\matrix (first) [table,text width=6em]
{
$\mathbf{x}^{(1)}$ & $x_0^{(1)}$ & $x_1^{(1)}$ & $\cdots$ & $x_{N-1}^{(1)}$ \\
$\mathbf{x}^{(2)}$ & $x_0^{(2)}$ & $x_1^{(2)}$ & $\cdots$ & $x_{N-1}^{(2)}$ \\
$\vdots$ & $\vdots$ & $\vdots$ & $\ddots$ & $\vdots$ \\
$\mathbf{x}^{(M)}$ & $x_0^{(M)}$ & $x_1^{(M)}$ & $\cdots$ & $x_{N-1}^{(M)}$ \\[10mm]
$\mathbf{x}^{(R)}$ & $x_0^{(R)}$ & $x_1^{(R)}$ & $\cdots$ & $x_{N-1}^{(R)}$ \\
};

% Add arrows
\draw[->] (first-1-2) to (first-6-2);
\draw[->] (first-1-3) to (first-6-3);
\draw[->] (first-1-4) to (first-6-4);
\draw[->] (first-1-5) to (first-6-5);

\end{tikzpicture}

This will draw arrows connecting each column in the first row to the corresponding entry in the last row. You can adjust the positioning and styling of the arrows as needed. Hope this helps!