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  2. Pivotal quantity - Wikipedia

    en.wikipedia.org/wiki/Pivotal_quantity

    The function (,) is the Student's t-statistic for a new value , to be drawn from the same population as the already observed set of values . Using x = μ {\displaystyle x=\mu } the function g ( μ , X ) {\displaystyle g(\mu ,X)} becomes a pivotal quantity, which is also distributed by the Student's t-distribution with ν = n − 1 ...

  3. Pivot table - Wikipedia

    en.wikipedia.org/wiki/Pivot_table

    A pivot table is a table of values which are aggregations of groups of individual values from a more extensive table (such as from a database, spreadsheet, or business intelligence program) within one or more discrete categories. The aggregations or summaries of the groups of the individual terms might include sums, averages, counts, or other ...

  4. Looker Studio - Wikipedia

    en.wikipedia.org/wiki/Looker_Studio

    Tables are utilized to show "granular data, a large number of fields, or multiple metrics with very different units and scales aggregated for one or more dimension fields". [20] There are three ways to utilize tables and pivot table charts in Looker. Users can display data with numbers, bars, or heatmaps. [20]

  5. Pivot element - Wikipedia

    en.wikipedia.org/wiki/Pivot_element

    The pivot or pivot element is the element of a matrix, or an array, which is selected first by an algorithm (e.g. Gaussian elimination, simplex algorithm, etc.), to do certain calculations. In the case of matrix algorithms, a pivot entry is usually required to be at least distinct from zero, and often distant from it; in this case finding this ...

  6. Selection algorithm - Wikipedia

    en.wikipedia.org/wiki/Selection_algorithm

    Many methods for selection are based on choosing a special "pivot" element from the input, and using comparisons with this element to divide the remaining input values into two subsets: the set of elements less than the pivot, and the set of elements greater than the pivot.

  7. Zero-inflated model - Wikipedia

    en.wikipedia.org/wiki/Zero-inflated_model

    Zero-inflated models are commonly used in the analysis of count data, such as the number of visits a patient makes to the emergency room in one year, or the number of fish caught in one day in one lake. [1] Count data can take values of 0, 1, 2, … (non-negative integer values). [2]

  8. Estimating equations - Wikipedia

    en.wikipedia.org/wiki/Estimating_equations

    In statistics, the method of estimating equations is a way of specifying how the parameters of a statistical model should be estimated.This can be thought of as a generalisation of many classical methods—the method of moments, least squares, and maximum likelihood—as well as some recent methods like M-estimators.

  9. Mazziotta–Pareto index - Wikipedia

    en.wikipedia.org/wiki/Mazziotta–Pareto_index

    The Mazziotta–Pareto index (MPI) is a composite index [1] (OECD, 2008 [2]) for summarizing a set of individual indicators that are assumed to be not fully substitutable. [3] It is based on a non-linear function which, starting from the arithmetic mean of the normalized indicators, introduces a penalty for the units with unbalanced values of the indicators (De Muro et al., 2011 [4]).