# Principal Components Analysis (PCA) Algorithm

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A Principal Components Analysis (PCA) Algorithm is a matrix decomposition algorithm that can be implemented by a PCA system to solve a PCA task (to return principal components of a matrix).

**Context:**- It can be a Matrix Dimensionality Compression Algorithm.
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**Example(s):****Counter-Example(s):****See:**Linear Combination, Covariance Matrix, Linear Model, Linear Combination, PCA Score.