Raw FTIR data for archaeological amber and the MATLAB code for amber origin tracing

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The raw ATR-FTIR and DRIFTS data (.xlsx) of the archaeological amber samples in the research "FTIR spectra combined with machine learning to reveal the amber trade during the Han dynasty (202 BCE–220 CE)". The samples are from the Han dynasty, and are identified as Baltic amber and Burmese amber. The MATLAB code was used for DBSCAN clustering algorithm and machine learning classification models establishing (including Support Vector Machine, Decision Tree, and K-Nearest Neighbor).

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