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dplyr is an R package whose set of functions are designed to enable dataframe (a spreadsheet-like data structure) manipulation in an intuitive, user-friendly way. It is one of the core packages of the popular tidyverse set of packages in the R programming language . [ 1 ]
Wes McKinney is an American software developer and businessman. He is the creator and "Benevolent Dictator for Life" (BDFL) of the open-source pandas package for data analysis in the Python programming language, and has also authored three versions of the reference book Python for Data Analysis.
The terms data dictionary and data repository indicate a more general software utility than a catalogue. A catalogue is closely coupled with the DBMS software. It provides the information stored in it to the user and the DBA, but it is mainly accessed by the various software modules of the DBMS itself, such as DDL and DML compilers, the query optimiser, the transaction processor, report ...
Column labels are used to apply a filter to one or more columns that have to be shown in the pivot table. For instance if the "Salesperson" field is dragged to this area, then the table constructed will have values from the column "Sales Person", i.e., one will have a number of columns equal to the number of "Salesperson". There will also be ...
Dictionary Johnson: Samuel Johnson's Middle Years. New York: McGraw-Hill. Collins, H. P. (1974) "The Birth of the Dictionary." History Today (March 1974), Vol. 24 Issue 3, pp 197–203 online. Hitchings, Henry (2005). Dr Johnson's Dictionary: The Extraordinary Story of the Book That Defined the World. London: John Murray. ISBN 0-7195-6631-2.
The advanced learner's dictionary is the most common type of monolingual learner's dictionary, that is, a dictionary written in one language only, for someone who is learning a foreign language. It differs from a bilingual or translation dictionary, a standard dictionary written for native speakers , or a children's dictionary.
The precursor to the English Pronouncing Dictionary was A Phonetic Dictionary of the English Language by Hermann Michaelis and Daniel Jones, [3] [4] published in Germany in 1913. In this work, the headwords of the dictionary were listed in phonemic transcription, followed by their spelling form, so the user needed to be aware of the phonemic ...
Macmillan English Dictionary for Advanced Learners, also known as MEDAL, is an advanced learner's dictionary published from 2002 until 2023 [1] by Macmillan Education.It shares most of the features of this type of dictionary: it provides definitions in simple language, using a controlled defining vocabulary; most words have example sentences to illustrate how they are typically used; and ...