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Concept
Table (information)
Summary
A table is an arrangement of information or data, typically in rows and columns, or possibly in a more complex structure. Tables are widely used in communication, research, and data analysis. Tables appear in print media, handwritten notes, computer software, architectural ornamentation, traffic signs, and many other places. The precise conventions and terminology for describing tables vary depending on the context. Further, tables differ significantly in variety, structure, flexibility, notation, representation and use. Information or data conveyed in table form is said to be in tabular format (adjective). In books and technical articles, tables are typically presented apart from the main text in numbered and captioned floating blocks.
A table consists of an ordered arrangement of rows and columns. This is a simplified description of the most basic kind of table. Certain considerations follow from this simplified description:
the term row has several common synonyms (e.g., record, k-tuple, n-tuple, vector);
the term column has several common synonyms (e.g., field, parameter, property, attribute, stanchion);
a column is usually identified by a name;
a column name can consist of a word, phrase or a numerical index;
the intersection of a row and a column is called a cell.
The elements of a table may be grouped, segmented, or arranged in many different ways, and even nested recursively. Additionally, a table may include metadata, annotations, a header, a footer or other ancillary features.
The following illustrates a simple table with three columns and nine rows. The first row is not counted, because it is only used to display the column names. This is called a "header row".
The concept of dimension is also a part of basic terminology. Any "simple" table can be represented as a "multi-dimensional"
table by normalizing the data values into ordered hierarchies. A common example of such a table is a multiplication table.
In multi-dimensional tables, each cell in the body of the table (and the value of that cell) relates to the values at the beginnings of the column (i.
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