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Data is the plural of datum. A datum is a statement accepted at face value (a "given"). A large class of practically important statements are measurements or observations of a variable. Such statements may comprise numbers, words, or images.
Etymology
The word data is the plural of Latin datum, neuter past participle of dare, "to give", hence "something given". The past participle of "to give" has been used for millennia, in the sense of a statement accepted at face value; one of the works of Euclid, circa 300 BC, was the Dedomena (in Latin, Data). In discussions of problems in geometry, mathematics, engineering, and so on, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science: data are numbers, words, images, etc., accepted as they stand.
Usage in English
In English, the word datum is still used in the general sense of "something given", and more specifically in cartography, geography, geology, and drafting to mean a reference point, reference line, or reference surface. The Latin plural data is also used as a plural in English, but it is also commonly treated as a mass noun and used in the singular. For example, "This is all the data from the experiment". This usage is inconsistent with the rules of Latin grammar, which would suggest, "These are the data ..."; each measurement or result is a single datum. However, given the variety and irregularity of English plural constructions, there seem to be no grounds for arguing that data is incorrect as a singular mass noun in English. More on [ Data ]
Top 10 trends for 2010 in analytics, BI, and performance management. #6 - arrival of "big data" era: http://bit.ly/8zN00a
swooledge (Steve Wooledge) Tue, 15 Dec 2009 00:31:21 -0000
Top 10 trends for 2010 in analytics, BI, and performance management. #6 - arrival of "big data" era: http://bit.ly/8zN00a
Any module for fake data injection in a social network site ? #drupal #test #performance
coopain (misagh shakeri) Mon, 14 Dec 2009 23:38:32 -0000
Any module for fake data injection in a social network site ? #drupal #test #performance
array_unique(array_values(unserialize($data))); I wonder what the performance penalty on this is in PHP5. #benchmarking
JaysonJPhillips (Jayson J. Phillips) Mon, 14 Dec 2009 22:34:25 -0000
array_unique(array_values(unserialize($data))); I wonder what the performance penalty on this is in PHP5. #benchmarking
RT @SmartSOA: Got Data? WebSphere eXtreme Scale allows scaling apps w/o performance and size worries of the DB. http://bit.ly/4UBgfk
ibmsmartwork (Smart Work) Mon, 14 Dec 2009 22:21:49 -0000
RT @SmartSOA: Got Data? WebSphere eXtreme Scale allows scaling apps w/o performance and size worries of the DB. http://bit.ly/4UBgfk
Per processor licensing holds up VMware virtualization push: At one Midwestern data processing firm, performance of... http://bit.ly/53TkXZ
biznews_storage (Storage Biz-News.com) Mon, 14 Dec 2009 22:16:50 -0000
Per processor licensing holds up VMware virtualization push: At one Midwestern data processing firm, performance of... http://bit.ly/53TkXZ
Damnit, I want to use a UUID as a primary key in a new data model, but it creates performance issues and isn't a default in MySQL. Ugh.
slave_to_anime (Jason) Mon, 14 Dec 2009 22:05:11 -0000
Damnit, I want to use a UUID as a primary key in a new data model, but it creates performance issues and isn't a default in MySQL. Ugh.
AutumnGold.com - Commodity trading advisor database, statistics, monthly performance updates.
Meta Description: [ Managed futures, cta and alternative investment database for investors, commodity
trading advisors and traders. We offer free investment information about CTAs and Hedge Funds. ]
Barclay Trading Group, Ltd. - Managed futures trading advisors, Barclay CTA Index, Barclay Futures Index, asset allocation software.
Meta Description: [ A premier provider of alternative investment performance data, analytical tools, and consulting services to institutional and high net worth investors. Features the Commercial Markets Index, Barclay CTA Index, and other recognized industry benchmarks for the managed futures industry. ]
CTA and managed accounts database, information and performance reporting, asset allocation tools - Alternative investment database and performance measurement and reporting service. Helpful for individual and institutional investors in the search, qualification and selection process, as well as ongoing performance tracking
CTA-Index - Database of more than 400 CTA performance records.
International Traders Research, Inc. - Provides performances on over 400 CTA programs.
Meta Description: [ Managed Futures, Commodity Trading Advisors, CTAs, Research Software, Industry Information,
Top 40 Commodity Trading Advisors ]
Managed Account Research, Inc - Managed Account investments database, performance and research reports, and asset allocation software. Helpful for individual and institutional investors in the search and selection of managed account investments.
Meta Description: [ Managed Account Research, Inc. is a managed futures research, advisory and brokerage firm, providing both individual and institutional investors with customized Managed Futures investment funds and trading programs. Managed Account Research, Inc. - Your Advisor Analysis and Brokerage ]
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