You can use R to explore data and build predictive models. Relational database servers are designed to handle large amounts of data and they will maintain data consistency for concurrent users. Because data is usually stored in a normalized fashion in relational databases, you will likely need to recall some of your SQL skills to join the relevant attributes across multiple tables to perform your exploratory data analysis (EDA) tasks. If you're working alongside a Database Administrator (DBA) or data analyst with strong relational database skills, you could create some read-only views that would speed up the initial data analysis tasks. If you're working with data in DB2, you can use the IBM Data Studio tool or the web console within dashDB for Cloud to examine the database schema or define new views to simplify data access from your R scripts.
late 12c., "board, slab, plate," from Old French "board, plank, writing table, picture" (11c.), and late Old English , from West Germanic (cf. Old High German , German ), both the French and Germanic words from Latin "a board, plank, table," originally "small flat slab or piece" usually for inscriptions or for games, of uncertain origin, related to Umbrian "on the board."
The sense of "piece of furniture with the flat top and legs" first recorded c.1300 (the usual Latin word for this was (see ); Old English writers used (see (n.1)). The meaning "arrangement of numbers or other figures for convenience" is recorded from late 14c. (e.g. , mid-15c.).
Figurative phrase (1630s) is from backgammon (in Old and Middle English the game was called ). is attested from 1560s, translating Latin . To is first recorded 1956. The adjectival phrase "hidden from view" is recorded from 1949; "passed out from excess drinking" is recorded from 1921. is recorded from 1887.
R objects are created and managed within a single memory area. In most cases, your data analysis tasks require the data to be available as a data frame. A data frame can be considered a two-dimensional array of heterogeneous data or an in-memory table. If the data already exists in a delimited text file, R users can bring the data into memory for analysis using one of the many functions such as for CSV files. Similarly, if an R data frame is to be externalized to a file, you can use the functions.
dashDB for Cloud, a web-based database server offering, is optimized for simplicity. In a few minutes you can create tables, load data, and start your analysis. Tools are provided (IBM Data Studio and IBM InfoSphere Data Architect) to simplify creating and maintaining database models and objects (such as tables). After the schema has been created, you can use the dashDB for Cloud web console to load your data. There are many options for loading the data, such as local files, cloud storage services (for example, Amazon S3), or IBM InfoSphere DataStage. The web console can be used to performed your analysis work using Excel, SQL, Cognos Business Insight (BI)" , or R scripts and R models.