Breadcrumbs

PCA model

Unsupervised PCA model

Parameters

Number of components

The number of component you want to detect and visualize.

Pretreatments

In top-down applied order ⬇️ , meaning Savitzky-Golay is applied first then Derivative and so on.

  • Savitzky-Golay

  • Derivative

  • SNV (Standard Normal Variate)

  • Logarithm

  • Center

  • UV (Unit Variance) scaling

For more on each type of pretreatment see: Pretreatments

Smooth

Smooth prediction result using median filter kernel

  • None

    • No Smoothing prediction.

  • Low

    • Smoothing using median filter kernel with 5x5 pixel box

  • Medium

    • Smoothing using median filter kernel with 10x10 pixel box

  • High

    • Smoothing using median filter kernel with 15x15 pixel box