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  2. Pivot table - Wikipedia

    en.wikipedia.org/wiki/Pivot_table

    Row labels are used to apply a filter to one or more rows that have to be shown in the pivot table. For instance, if the "Salesperson" field is dragged on this area then the other output table constructed will have values from the column "Salesperson", i.e., one will have a number of rows equal to the number of "Sales Person". There will also ...

  3. Data blending - Wikipedia

    en.wikipedia.org/wiki/Data_blending

    In tableau software, data blending is a technique to combine data from multiple data sources in the data visualization. [17] A key differentiator is the granularity of the data join. When blending data into a single data set, this would use a SQL database join, which would usually join at the most granular level, using an ID field where ...

  4. Merge (SQL) - Wikipedia

    en.wikipedia.org/wiki/Merge_(SQL)

    Additionally there is a single-row version, UPDATE OR INSERT INTO tablename (columns) VALUES (values) [MATCHING (columns)], but the latter does not give you the option to take different actions on insert versus update (e.g. setting a new sequence value only for new rows, not for existing ones.)

  5. Focus stacking - Wikipedia

    en.wikipedia.org/wiki/Focus_stacking

    Focus stacking (for extended depth of field) in bright field light microscopy. This example is of a diatom microfossil in diatomaceous earth. Three source images at different focus distances (top left) are combined with masks (top right) to obtain the contributions of their respective images to the final focus stacked image (bottom).

  6. Empirical distribution function - Wikipedia

    en.wikipedia.org/wiki/Empirical_distribution...

    Since the ratio (n + 1)/n approaches 1 as n goes to infinity, the asymptotic properties of the two definitions that are given above are the same.. By the strong law of large numbers, the estimator ^ converges to F(t) as n → ∞ almost surely, for every value of t: [2]

  7. Viewshed analysis - Wikipedia

    en.wikipedia.org/wiki/Viewshed_Analysis

    Where cells of higher value are between the viewpoint and target cells the line of sight is blocked. If the line of sight is blocked then the target cell is determined to not be part of the viewshed. If it is not blocked then it is included in the viewshed. [2] The algorithm is also based on a given set of variables.

  8. Scaffolding (bioinformatics) - Wikipedia

    en.wikipedia.org/wiki/Scaffolding_(bioinformatics)

    This is an example of a scaffold. Scaffolding is a technique used in bioinformatics.It is defined as follows: [1] Link together a non-contiguous series of genomic sequences into a scaffold, consisting of sequences separated by gaps of known length.

  9. European Union - Wikipedia

    en.wikipedia.org/wiki/European_Union

    The European Development Fund (EDF, €22.7 billion for the period 2008–2013 and €30.5 billion for the period 2014–2020) is made up of voluntary contributions by member states, but there is pressure to merge the EDF into the budget-financed instruments to encourage increased contributions to match the 0.7 per cent target and allow the ...