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To create a treemap, one must define a tiling algorithm, that is, a way to divide a region into sub-regions of specified areas. Ideally, a treemap algorithm would create regions that satisfy the following criteria: A small aspect ratio—ideally close to one. Regions with a small aspect ratio (i.e., fat objects) are easier to perceive. [2]
Example of a radial tree, from a 1924 organization chart that emphasizes a central authority [1] A radial tree, or radial map, is a method of displaying a tree structure (e.g., a tree data structure) in a way that expands outwards, radially. It is one of many ways to visually display a tree, [2] [3] with examples dating back to the early 20th ...
Gizmo's Freeware directory featured WinDirStat in a January 2010 list of best free disk analysis software with a 4 of 5 stars review, noting: "The open source program WinDirStat is [an] outstanding program. It uses three ways to display the disk usage: a directory list, a file extension list and a rectangular treemap.
The example also shows how the chart's overall style can be overridden by more specific styles set by {}. In this case, the color of the first row of cells is set to yellow using the features of the {{ Tree chart }} template; see that template's documentation for details on how to specify the CSS of rows and individual cells of a chart.
World Programming System (WPS Analytics) GUI, command line: Proprietary: No 2002: March 2020 / v4.2 AIX, Linux, Linux for Arm8 64-bit (AArch64), macOS, PowerLinux, POWER/System p/pSeries (LE), Windows, Linux for System z, z/OS: Statistics. Handles very large data sets. Supports mixing Python, R, SAS and SQL languages within a single user ...
A tree map used to represent a directory structure as a nested set A diagram in the shape of a tree illustrating the "evolution" of thermionic tubes (a type of vacuum tube) between 1883 and 1934. Internet: usenet hierarchy; Document Object Model's logical structure, [3] Yahoo! subject index, Curlie; Operating system: directory structure
N 2 chart example. [1] The N 2 chart or N 2 diagram (pronounced "en-two" or "en-squared") is a chart or diagram in the shape of a matrix, representing functional or physical interfaces between system elements. It is used to systematically identify, define, tabulate, design, and analyze functional and physical interfaces.
In statistical quality control, the individual/moving-range chart is a type of control chart used to monitor variables data from a business or industrial process for which it is impractical to use rational subgroups. [1] The chart is necessary in the following situations: [2]: 231