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Quantitative research using statistical methods starts with the collection of data, based on the hypothesis or theory. Usually a big sample of data is collected – this would require verification, validation and recording before the analysis can take place. Software packages such as SPSS and R are typically used for this purpose. Causal ...
The term data-driven is a neologism applied to an activity which is primarily compelled by data over all other factors. [citation needed] ...
The user, rather than the database itself, typically initiates data curation and maintains metadata. [8] According to the University of Illinois' Graduate School of Library and Information Science, "Data curation is the active and on-going management of data through its lifecycle of interest and usefulness to scholarship, science, and education; curation activities enable data discovery and ...
Data profiling is the process of examining the data available from an existing information source (e.g. a database or a file) and collecting statistics or informative summaries about that data. [1] The purpose of these statistics may be to: Find out whether existing data can be easily used for other purposes
Graphical examination of count data may be aided by the use of data transformations chosen to have the property of stabilising the sample variance. In particular, the square root transformation might be used when data can be approximated by a Poisson distribution (although other transformation have modestly improved properties), while an inverse sine transformation is available when a binomial ...
From January 2008 to September 2009, if you bought shares in companies when Peter S. Willmott joined the board, and sold them when he left, you would have a -14.3 percent return on your investment, compared to a -27.6 percent return from the S&P 500.
Data aggregation is the compiling of information from databases with intent to prepare combined datasets for data processing. [1] Description
For the fourth time in five years, the Kansas City Chiefs and Buffalo Bills will meet in the postseason.. This weekend's AFC championship game will also be the second time in that span that the ...