Data for: OPLS multivariate regression of FTIR-ATR spectra of acrylic paints for age estimation in contemporary artworks

Raw data acquired by FTIR-ATR for two paint brands and applied to the chemometric analysis. Each column gives the absorbance measured at each wavenumber recorded for each paint sample. The accelerated ageing time of each paint sample is expressed as a logarithmic function.本数据集涵盖针对两个涂料品牌采用傅里叶变换红外衰减全反射（FTIR-ATR）技术采集的原始实验数据，用于化学计量学分析（chemometric analysis）。每一列对应单份涂料样品在各记录波数下测得的吸光度数值。各涂料样品的加速老化时间以对数函数形式表征。