I have a figure where I am writing som matrices I want something like
but I am getting this, How to change it?
I have
\begin {figure}[h]
\centering
\small
\textbf{X}
\[\left( \begin{array}{cccc}
x_{11} & x_{12} &\cdots & x_{1d} \\
x_{21} & x_{22} &\cdots & x_{2d} \\
\vdots & \vdots &\ddots & \vdots \\
x_{n1} & x_{n2} &\cdots & x_{nd} \end{array} \right)\]
\[ \boldsymbol{n \times d} \]
\textbf{Data}
\Huge
\[\downarrow \]
\small
\textbf{\[\rho\]}
\[\left( \begin{array}{cccc}
\rho_{11} & \rho_{12} &\cdots & \rho_{1d} \\
\rho_{21} & \rho_{22} &\cdots & \rho_{2d} \\
\vdots & \vdots &\ddots & \vdots \\
\rho_{d1} & \rho_{d2} &\cdots & \rho_{dd} \end{array} \right)\]
\[ \boldsymbol{d \times d} \]
\textbf{Correlation Matrix}
\Huge
\[\downarrow \]
\small
\textbf{U}
\[\left( \begin{array}{ccc}
u_{11} & \cdots & u_{1d} \\
\vdots & \ddots & \vdots \\
u_{d1} & \cdots & u_{dd} \end{array} \right)\]
\[ \boldsymbol{d \times d} \]
\textbf{EigenVectors}
\textbf{\[\Sigma\]}
\[\left( \begin{array}{ccc}
\sigma_{11} & 0 & \cdots \\
0 & \ddots & \vdots \\
\vdots & \cdots & \sigma_{dd} \end{array} \right)\]
\[ \boldsymbol{d \times d} \]
\textbf{Singular Values}
\caption{ Steps in matrix notation of SVD}
\label{fig:stpeE}
\end{figure}