The Gini coefficient is a single number aimed at measuring how far a country’s wealth distribution deviates from totally equal distribution of productivity.
Silhouette analysis can be used to study the separation distance between the resulting clusters. The silhouette plot displays a measure of how close each point in one cluster is to points in the neighboring clusters and thus provides a way to assess parameters like number of clusters visually. This
Correlation, and regression analysis for curve fitting The techniques described on this page are used to investigate relationships between two variables (x and y).
In statistics, the Pearson correlation coefficient (PCC, pronounced / ˈ p ɪər s ən /), also referred to as Pearson’s r, the Pearson product-moment correlation coefficient (PPMCC) or the bivariate correlation, is a measure of the linear correlation between two variables X and Y.
Sep 30, 2011 · Almost every day you can find in media commentary that XYZ is causing stocks to fall (or rise). Such definitive statements are common—but what’s almost always missing is statistical proof.
This calculator enables to evaluate online the correlation coefficient from a set of bivariate observations.
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BACKGROUND AND PURPOSE: Head and neck squamous cell carcinoma associated with human papillomavirus infection represents a distinct tumor entity. We hypothesized that diffusion phenotypes based on the histogram analysis of ADC values reflect distinct degrees of tumor heterogeneity in human papillomavirus–positive and human …
Terminology. Acre-foot: The volume of water covering 1 acre to a depth of 1 foot. Base Flow: The flow in a channel due to soil moisture or ground water. Class Interval: A range into which data may be grouped (a sub-range of the total range).
Stall Speed at Clmax=x.xx – This appears only on the in-flight analysis, and only if the wing area and airframe weight were specified for the model. It indicates the range of speeds which are at or below the aircraft’s stall speed at the maximum lift coefficient (i.e. the speed below which the aircraft cannot fly).
