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[4] Pearson himself noted in 1895 that although the term "histogram" was new, the type of graph it designates was "a common form of graphical representation". [ 5 ] In fact the technique of using a bar graph to represent statistical measurements was devised by the Scottish economist , William Playfair , in his Commercial and political atlas (1786).
Kernel density estimation of 100 normally distributed random numbers using different smoothing bandwidths.. In statistics, kernel density estimation (KDE) is the application of kernel smoothing for probability density estimation, i.e., a non-parametric method to estimate the probability density function of a random variable based on kernels as weights.
4+1 is a view model used for "describing the architecture of software-intensive systems, based on the use of multiple, concurrent views". [ 1 ] The views are used to describe the system from the viewpoint of different stakeholders, such as end-users, developers, system engineers, and project managers. The four views of the model are logical ...
Image histogram. An image histogram is a type of histogram that acts as a graphical representation of the tonal distribution in a digital image. [1] It plots the number of pixels for each tonal value. By looking at the histogram for a specific image a viewer will be able to judge the entire tonal distribution at a glance.
KOffice was a free and open source office and graphics suite developed by KDE for Unix-like and Windows systems. KOffice contains a word processor (KWord), a spreadsheet (KSpread), a presentation program (KPresenter), and a number of other components that varied over the course of its development. KOffice was superseded by Calligra Suite in KDE.
A cobweb plot, known also as Lémeray Diagram or Verhulst diagram is a visual tool used in the dynamical systems field of mathematics to investigate the qualitative behaviour of one-dimensional iterated functions, such as the logistic map. The technique was introduced in the 1890s by E.-M. Lémeray. [ 1 ] Using a cobweb plot, it is possible to ...
KDE is an international free software community that develops free and open-source software. As a central development hub, it provides tools and resources that enable collaborative work on its projects. [1] Its products include the Plasma Desktop, KDE Frameworks, and a range of applications such as Kate, digiKam, and Krita. [2]
Plasma is a set of graphical shells developed by KDE for Unix-like operating systems. With the KDE brand repositioning in 2009, Plasma 4.4 succeeded KDE 4.3.Currently, it has four workspace variants: one for desktop PCs and laptops (Plasma Desktop) [a], [4] [5] [6] one for TVs (Plasma Bigscreen), [7] one for smartphones (Plasma Mobile), [8] and another for embedded and touch-enabled devices ...