Sample-level data matrix for grape maturity screening under date-wise validation

Sample-level matrix used in the study "From hyperspectral modeling to multispectral design for grape maturity screening under date-wise validation". The record contains the consolidated analytical matrix used for chemical-response statistics, exploratory analysis, supervised modelling, date-wise robustness assessment, VIP-based interpretability, and multispectral filter-set design. The matrix corresponds to the sample-level dataset derived from berry-scale hyperspectral measurements and wet-chemistry reference variables. It is deposited as a dataset record separate from the software workflow, which is archived independently in Zenodo. Files included:- Matriz_CHEM_HSI_MASTER_96.xlsx- README_dataset.md The Excel workbook contains two sheets:- Matriz: main analytical table used for statistics and modelling- DataDictionary: variable-level dictionary with English descriptions, recommended units, categories, and notes