Data

Data (/ˈdeɪtə/ DAY-tə, /ˈdætə/ DA-tə, or /ˈdɑːtə/ DAH-tə) is a set of values of qualitative or quantitative variables; restated, pieces of data are individual pieces of information. Data is measured, collected and reported, and analyzed, whereupon it can be visualized using graphs or images. Data as a general concept refers to the fact that some existing information or knowledge is represented or coded in some form suitable for better usage or processing.

Raw data, i.e. unprocessed data, is a collection of numbers, characters; data processing commonly occurs by stages, and the "processed data" from one stage may be considered the "raw data" of the next. Field data is raw data that is collected in an uncontrolled in situ environment. Experimental data is data that is generated within the context of a scientific investigation by observation and recording.

The Latin word "data" is the plural of "datum", and still may be used as a plural noun in this sense. Nowadays, though, "data" is most commonly used in the singular, as a mass noun (like "information", "sand" or "rain").

Time series

A time series is a sequence of data points that

1) Consists of successive measurements made over a time interval

2) The time interval is continuous

3) The distance in this time interval between any two consecutive data point is the same

4) Each time unit in the time interval has at most one data point

Examples of time series are ocean tides, counts of sunspots, and the daily closing value of the Dow Jones Industrial Average.

Non-Examples: The height measurements of a group of people where each height is recorded over a period of time and each person has only one record in the data set.

Panel data set is sometimes difficult to be differentiated from time series data set. One data set may exhibit both characteristics of panel data set and time series data set. One way to differentiate is to ask: what makes one data record unique from the other records? If the answer is the time data field, then this is a time series data set candidate. If determining a unique records requires a time data field and an additional identifier which is unrelated to time (student ID, stock symbol, country code), then it is a panel data candidate. If the differentiation lies on the non time identifier, then the data set is a cross sectional data set candidate.

Level 2

Level 2 or Level II may refer to:

Technology

Places

Music

Samsung Galaxy

Samsung Galaxy (stylized as Samsung GALAXY or SAMSUNG Galaxy) is a series of mobile computing devices designed, manufactured and marketed by Samsung Electronics. The product line includes the Galaxy S series of high-end smartphones, the Galaxy Tab series of tablets, the Galaxy Note series of tablets and phablets with the added functionality of a stylus and the first version of the Galaxy Gear smartwatch, with later versions dropping the Galaxy branding.

Samsung Galaxy devices have traditionally used the Android operating system produced by the Open Handset Alliance led by Google, usually with a custom user interface called TouchWiz. This tradition was broken at CES 2016 with the announcement of the first Galaxy-branded Windows 10 device, the Samsung Galaxy TabPro S.

Categorization

Since August 2015, all the smartphones of the Galaxy series are categorized in the following way:

Primary

Secondary

The model number of Samsung Galaxy devices will indicate the variant:

Hard Reset

Hard Reset is a first-person shooter for Microsoft Windows, developed by Flying Wild Hog. The game features a cyberpunk plot. It draws inspiration from the works of William Gibson, Neal Stephenson, and Philip K. Dick (especially Blade Runner). In 2012, Hard Reset received a free expansion titled Hard Reset: Exile, and was then bundled as Hard Reset: Extended Edition.

Plot

Major Fletcher of the CLN protects the futuristic city of Bezoar against attacks from the Barrens, territory conquered by machines.

Gameplay

Hard Reset is modeled on "old school" video games such as Quake and Unreal, which results in more straightforward gameplay than most modern first-person shooters. The various stages have secret areas with hidden pick ups such as health and ammunition. The environments are designed similarly, as there are explosive barrels and various vending machines outfitted with electro-shock anti-vandalism defenses, that can trigger splash damage by being shot at, scattered throughout the levels, which the player can use by luring enemies near them. The game lacks a multiplayer mode, which was a chief criticism.