Computer scienceData scienceMachine learningData preprocessingFeature engineering

Principal component analysis

The matrix transformation

Report a typo

After standardization, we calculated the covariance matrix for cell size, number of chromosomes, and DNA replication time:

$\begin{bmatrix} 1 & 0.25 & 0.13\\ 0.25 & 1 & 0.75\\ 0.13 & 0.75& 1 \end{bmatrix}$ Transform this matrix projecting it into an eigenvector space.

You can use one of the online matrix calculators, for example this one, or a programming language if your choice for matrix calculations.

Select one option from the list

\begin{bmatrix} 1.837 & 0 & 0\\ 0 & 0.923 & 0\\ 0 & 0& 0.24 \end{bmatrix}

\begin{bmatrix} 1 & 0 & 0\\ 0 & 1 & 0\\ 0 & 0& 1 \end{bmatrix}

\begin{bmatrix} 1.16 & 0 & 0\\ 0 & 0.42 & 0\\ 0 & 0& 0.143 \end{bmatrix}

___

Create a free account to access the full topic