R aggregate function fun

    • [PDF File]RELATIONAL ALGEBRA II - California Institute of Technology

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      Aggregate Functions ¨Very useful to apply a function to a collection of values to generate a single result ¨Most common aggregate functions: sum sums the values in the collection avg computes average of values in the collection count counts number of elements in the collection min returns minimum value in the collection max returns maximum value in the collection

    • and aggregate production functions - JSTOR

      aggregate production function" (Solow, 1987). Nevertheless, aggregate production functions are widely used, albeit with a bad conscience, as Solow (1987) put it. Economists do not normally have a great deal of time for methodology, but, if pushed, the advocates of the aggregate production function would probably rely on Friedman's (1953) instru-

    • [PDF File]The Aggregate Production Function - New York University

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      The production function tells us how different amounts of capital and labor may be combined to produce output. The critical ingredient here is the function F. Among its properties are 1. More input leads to more output. In economic terms, the marginal products of capital and labor are positive. In mathematical terms, output increases in both K ...

    • [PDF File]sf: Simple Features for R - Washington University in St. Louis

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      aggregate(x, by, FUN,..., do_union = TRUE, simplify = TRUE, join = st_intersects) Arguments ... FUN function passed on toaggregate, in case ids was specified and attributes need to be grouped... arguments passed on to FUN. aggregate.sf 5 do_union logical; should grouped geometries be unioned usingst_union? See details.

    • [PDF File]The Microeconomic Foundations of Aggregate Production Functions

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      It is possible to define an alternative notion, the aggregate distance function, which separates technology from final demand. The aggregate distance function must then be combined with final demand to compute general-equilibrium comparative statics. Our object of interest is the aggregate production function, which takes these two steps at ...

    • Aggregate Function in dplyr Cheat Sheet by shanly3011 - Cheatography

      Title: Aggregate Function in dplyr Cheat Sheet by shanly3011 - Cheatography.com Created Date: 20151116025502Z

    • Package ‘hyperSpec’

      FUN function to compute the summary statistics out.rows number of rows in the resulting hyperSpec object, for memory preallocation. ... ## Example 3: aggregate even takes FUN that return different numbers of ## values for different groups plot (spc, "spc", col = color[by]) weird.function

    • [PDF File]sf: Simple Features for R

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      aggregate(x, by, FUN,..., do_union = TRUE, simplify = TRUE, join = st_intersects) Arguments ... FUN function passed on toaggregate, in case ids was specified and attributes need to be grouped... arguments passed on to FUN. aggregate.sf 5 do_union logical; should grouped geometries be unioned usingst_union? See details.

    • [PDF File]SQL Aggregate Functions

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      SQL Aggregate Functions Using the SQL aggregate functions, you can determine various statistics on sets of values. You can use these functions in a query and aggregate expressions in the SQL property of a QueryDef object or when creating a Recordset object based on an SQL query. Avg Function Count Function First, Last Functions Min, Max Functions

    • [PDF File]hyperSpec: Work with Hyperspectral Data, i.e. Spectra + Meta ...

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      8 aggregate Details This function relies on R package xml2 to work correctly Value xml data from the file converted to R list.read.spe.xml_string .read.spe.xml_string ... ## Example 3: aggregate even takes FUN that return different numbers of ## values for different groups plot (spc, "spc", col = color[by])

    • [PDF File]Package ‘AggregateR’ - cran.r-project.org

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      Aggregate(x=data,by=’ID’) # Examples of how to use the object and p argument. See dummy and categories function for details. # Aggregate(x=data,by=’ID’,object=categories(data)) # Aggregate(x=data,by=’ID’,p=2) categories Extraction of Categorical Values as a Preprocessing Step for Making Dummy Variables Description

    • [PDF File]Package Spectacles - The Comprehensive R Archive Network

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      'SpectraDataFrame-methods.R' 'ZZZ.R' 'aggregate_spectra.R' 'australia.R' 'big_head.R' 'kenstone.R' 'performance.R' 'plot-methods.R' 'preprocessing.R' 'setters.R' 'splice.R' RoxygenNote 7.1.1 ... apply sequentially the fun function, and recombine the results in an unique object. Value An object of the same class as obj. 4 aggregate_spectra ...

    • [PDF File]Aggregation .edu

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      Mixing Aggregate Functions and Single Values An aggregate function also selects some row in the table to supply the values of columns that are not aggregated. In the case of max or min, this row is that of the max or min value. Otherwise, it is arbitrary. 5 create table animals as select "dog" as kind, 4 as legs, 20 as weight union

    • [PDF File]Package ‘Matrix.utils’ - cran.r-project.org

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      or more variables. Aggregation function will be applied to all columns in data, or as specified in formula. Warning: groupings will be made dense if it is sparse, though data will not. Usage ## S3 method for class ’Matrix’ aggregate(x, groupings = NULL, form = NULL, fun = "sum", ...) Arguments x a Matrix or matrix-like object

    • [PDF File]S4Vectors: Foundation of vector-like and list-like containers in ...

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      FUN The function, found via match.fun, to be applied to each subset of x. start, end, width The start, end, and width of the subsets. If by is missing, then two of the three ... aggregate(x, FUN=FUN, start=start, end=end, ..., simplify=simplify) is equivalent to: sapply(seq_along(start),

    • [PDF File]Applying an Aggregate Function - Wesleyan University

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      function. If you select the field as a display column, PeopleSoft Query displays the aggregate values. However, if you use the field as an order by column, the application organizes the results in an order that is based on the aggregate values. In this topic, you need to create a query to display the total number of invoices in a table. To this ...

    • [PDF File]The Aggregate Production Function - New York University

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      The production function tells us how di erent amounts of capital and labor may be combined to produce output. The critical ingredient here is the function F. Among its properties are More input leads to more output. In economic terms, the marginal products of capital and labor are positive. In mathematical terms, the function Fincreases in both ...

    • [PDF File]R: Statistical Functions - Johns Hopkins Bloomberg School of Public Health

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      R supports a large number of distributions. Usually, four types of functions are provided for each distribution: d*: density function p*: cumulative distribution function, P(X x) q*: quantile function r*: draw random numbers from the distribution * represents the name of a distribution. 140.776 Statistical Computing R: Statistical Functions

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