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. 2015 Apr 13;10(4):e0124240. doi: 10.1371/journal.pone.0124240

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© 2015 Zimmermann et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 11 — (A) FTIR spectra of Poa pratensis: recorded spectrum (green), scatter estimate with constant, linear, quadratic, and cubic terms (blue), and EMSC corrected spectrum (red) (multiplicative parameter b for Poa pratensis is 1.65); Savitzky–Golay smoothing (quadratic polynomial with window size 11) was obtained prior to EMSC correction with weighting vector. (B) EMSC parameters, and (C) scatter estimates for 10 Poaceae (blue) and 10 Cyperaceae spectra (red). (D) plot for linear and quadratic EMSC parameters for measured samples: Cyperaceae (Cyp), Poaceae (Poa), Cupressaceae (Cup), Pinaceae (Pin), Fagaceae (Fag), Betulaceae (Bet), Geastrum (Gea), Lycoperdon (Lyc), and Scleroderma (Scl).