Data analysis is a process of inspecting, cleansing, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making. Data analysis has multiple facets and approaches, encompassing diverse techniques under a variety of names, and is used in different business, science, and social science domains. In today's business world, data analysis plays a role in making decisions more scientific and helping businesses operate more effectively.
Data mining is a particular data analysis technique that focuses on statistical modeling and knowledge discovery for predictive rather than purely descriptive purposes, while business intelligence covers data analysis that relies heavily on aggregation, focusing mainly on business information. In statistical applications, data analysis can be divided into descriptive statistics, exploratory data analysis (EDA), and confirmatory data analysis (CDA). EDA focuses on discovering new features in the data while CDA focuses on confirming or falsifying existing hypotheses. Predictive analytics focuses on the application of statistical models for predictive forecasting or classification, while text analytics applies statistical, linguistic, and structural techniques to extract and classify information from textual sources, a species of unstructured data. All of the above are varieties of data analysis.
Data integration is a precursor to data analysis, and data analysis is closely linked to data visualization and data dissemination.
Swindon (/ˈswɪndən/ (listen)) is the largest town in Wiltshire, South West England, lying between Bristol, 35 miles (56 kilometres) to the west, and Reading, the same distance to the east. The town is 71 miles (114 km) west of London. The population of the Swindon built-up area was 185,600 in 2011.
The Town Development Act 1952 led to a major increase in its population.
Swindon railway station is on the line from London Paddington to Bristol. Swindon Borough Council is a unitary authority, independent of Wiltshire Council since 1997. Residents of Swindon are known as Swindonians. The town is home to the offices of English Heritage, the Historic England Archive (formerly the National Monuments Record Centre) and the headquarters of the National Trust (all three are on parts of the site of the former Great Western Railway's Swindon Works), and the head office of the Nationwide Building Society.