Meyer hardness index measurements of wood (beech, linden, ash, spruce, merbau)

The dataset contains Brinell-type hardness test results (under various loads) for the 5 wood species listed in the title (beech, linden, ash, spruce, and merbau) on 3 anatomical cross-sections (Radial R, Tangential T, and Lateral/transverse L). Each such measurement consisted of 4 series. Therefore, the set contains 5 x 3 x 4 = 60 files. Each file contains the results of indentation diameter measurements for five different loads. Four indentations were performed for each load, and each indentation had diameters measured in two perpendicular directions. The five loads and the 5 species are a coincidence of numbers, as are the four indentations and the 4 measurement series – to avoid misunderstandings, these numbers are marked differently here. In addition to the raw data, the files also contain the basic analysis (including the Meyer index calculation) and graphs.