Spectral Feature Extraction Using Partial and General Method

<div>Take A-type stellar spectra as an example. The respective variance contribution rate of the first five of principal components when PCA is used in 6,000 spectra from SDSS. The value of the brown point represents the total variance distribution rate and the blue point represents the variance distribution rate of the specific principal component.</div>

Advances in Astronomy

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Figure 1

Figure 1: Spectral Feature Extraction Using Partial and General Method 