Version 5 of the Professional Edition of Cranium contains a new, integrated modeling document that enables you to create new estimation techniques from data, new regression techniques, and new exporters for ASPEN and MATLAB. See below for detailed descriptions of additions and updates.
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If data is available for a temperature or pressure dependent property, it is often possible to interpolate or extrapolate these values to obtain estimates at other temperatures or pressures. Cranium's new "Regression Techniques" perform such interpolations and extrapolations.
For example, the "Den,l(T): ZrOnTw Regression Technique", highlighted below, estimates the density at a new temperature by collecting data, regressing this data into a quadratic equation, examining the statistical significance of the regression, and then using the equation to calculate the density.
Those estimates generated by this technique are shown as green diamonds in the graph. Note that Cranium could not use this technique near the ends of the data range, due to insufficient available values, and thus selected another technique.