Abstract: An apparatus or method determines a content of the one or more elements of a solid matrix by scanning the solid matrix using a PXRF spectrometer and a color sensor, receiving a PXRF spectra from the PXRF spectrometer and a numerical color data from the color sensor, extracting a value for each of the one or more elements the PXRF spectra, determining the content of the one or more elements of the solid matrix using one or more processors and a predictive model that relates the value of each of the one or more elements and the numerical color data to the content of the one or more elements of the solid matrix, and providing the content of the one or more elements of the solid matrix to one or more input/output interfaces.

Abstract: An apparatus and method include: receiving a data set having two or more variables; receiving a selection of at least one of the two or more variables, an abstraction level and a visual feature; automatically generating and displaying a set of visual representations of the data set on the display; receiving a change in the selected variables, selected abstraction level, the selected visual feature, or a selection from various views; determining a visual representation recommendation based on the selected variable(s), selected abstraction level and the selected visual feature, the change in the selected variables, selected abstraction level, the selected visual feature, or the selected views; and automatically updating and displaying the set of visual representations of the data set on the display based the visual representation recommendation, and the change in the selected variables, selected abstraction level, the selected visual feature, or the selected views.